152521313 has 8 divisors (see below), whose sum is σ = 177264960. Its totient is φ = 128516400.

The previous prime is 152521307. The next prime is 152521321. The reversal of 152521313 is 313125251.

It is a happy number.

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 152521313 - 2⁶ = 152521249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152521373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184238 + ... + 185063.

It is an arithmetic number, because the mean of its divisors is an integer number (22158120).

Almost surely, 2^152521313 is an apocalyptic number.

It is an amenable number.

152521313 is a deficient number, since it is larger than the sum of its proper divisors (24743647).

152521313 is an equidigital number, since it uses as much as digits as its factorization.

152521313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369367.

The product of its digits is 900, while the sum is 23.

The square root of 152521313 is about 12349.9519432263. The cubic root of 152521313 is about 534.2897530671.

Adding to 152521313 its reverse (313125251), we get a palindrome (465646564).

The spelling of 152521313 in words is "one hundred fifty-two million, five hundred twenty-one thousand, three hundred thirteen".