152504221431 has 4 divisors (see below), whose sum is σ = 203338961912. Its totient is φ = 101669480952.

The previous prime is 152504221393. The next prime is 152504221433. The reversal of 152504221431 is 134122405251.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 152504221431 - 2⁹ = 152504220919 is a prime.

It is a super-2 number, since 2×152504221431² (a number of 23 digits) 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 (152504221433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25417370236 + ... + 25417370241.

It is an arithmetic number, because the mean of its divisors is an integer number (50834740478).

Almost surely, 2^152504221431 is an apocalyptic number.

152504221431 is a deficient number, since it is larger than the sum of its proper divisors (50834740481).

152504221431 is an equidigital number, since it uses as much as digits as its factorization.

152504221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50834740480.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 152504221431 its reverse (134122405251), we get a palindrome (286626626682).

The spelling of 152504221431 in words is "one hundred fifty-two billion, five hundred four million, two hundred twenty-one thousand, four hundred thirty-one".