1354023221 has 4 divisors (see below), whose sum is σ = 1357255200. Its totient is φ = 1350791244.

The previous prime is 1354023101. The next prime is 1354023331. The reversal of 1354023221 is 1223204531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1223204531 = 43 ⋅28446617.

It is a cyclic number.

It is not a de Polignac number, because 1354023221 - 2²⁶ = 1286914357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354023521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1615361 + ... + 1616198.

It is an arithmetic number, because the mean of its divisors is an integer number (339313800).

Almost surely, 2^1354023221 is an apocalyptic number.

It is an amenable number.

1354023221 is a deficient number, since it is larger than the sum of its proper divisors (3231979).

1354023221 is an equidigital number, since it uses as much as digits as its factorization.

1354023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231978.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1354023221 is about 36797.0545152734. The cubic root of 1354023221 is about 1106.3062624475.

Adding to 1354023221 its reverse (1223204531), we get a palindrome (2577227752).

The spelling of 1354023221 in words is "one billion, three hundred fifty-four million, twenty-three thousand, two hundred twenty-one".