1454235221 has 4 divisors (see below), whose sum is σ = 1454311500. Its totient is φ = 1454158944.

The previous prime is 1454235197. The next prime is 1454235317. The reversal of 1454235221 is 1225324541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1225324541 = 7 ⋅175046363.

It can be written as a sum of positive squares in 2 ways, for example, as 202066225 + 1252168996 = 14215^2 + 35386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1454235221 - 2⁶ = 1454235157 is a prime.

It is a super-2 number, since 2×1454235221² = 4229600155993837682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1454235721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18185 + ... + 56913.

It is an arithmetic number, because the mean of its divisors is an integer number (363577875).

Almost surely, 2^1454235221 is an apocalyptic number.

It is an amenable number.

1454235221 is a deficient number, since it is larger than the sum of its proper divisors (76279).

1454235221 is an equidigital number, since it uses as much as digits as its factorization.

1454235221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76278.

The product of its digits is 9600, while the sum is 29.

The square root of 1454235221 is about 38134.4361568386. The cubic root of 1454235221 is about 1132.9521109877.

Adding to 1454235221 its reverse (1225324541), we get a palindrome (2679559762).

The spelling of 1454235221 in words is "one billion, four hundred fifty-four million, two hundred thirty-five thousand, two hundred twenty-one".