1453250221 has 8 divisors (see below), whose sum is σ = 1496438784. Its totient is φ = 1410267600.

The previous prime is 1453250213. The next prime is 1453250261. The reversal of 1453250221 is 1220523541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1453250221 - 2³ = 1453250213 is a prime.

It is a super-2 number, since 2×1453250221² = 4223872409673097682, 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 (1453250261) 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 7 ways as a sum of consecutive naturals, for example, 37105 + ... + 65446.

It is an arithmetic number, because the mean of its divisors is an integer number (187054848).

Almost surely, 2^1453250221 is an apocalyptic number.

It is an amenable number.

1453250221 is a deficient number, since it is larger than the sum of its proper divisors (43188563).

1453250221 is a wasteful number, since it uses less digits than its factorization.

1453250221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102971.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1453250221 is about 38121.5191328992. The cubic root of 1453250221 is about 1132.6962583200.

Adding to 1453250221 its reverse (1220523541), we get a palindrome (2673773762).

The spelling of 1453250221 in words is "one billion, four hundred fifty-three million, two hundred fifty thousand, two hundred twenty-one".