152810121 has 4 divisors (see below), whose sum is σ = 203746832. Its totient is φ = 101873412.

The previous prime is 152810117. The next prime is 152810131. The reversal of 152810121 is 121018251.

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.

It is not a de Polignac number, because 152810121 - 2² = 152810117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152810131) 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, 25468351 + ... + 25468356.

It is an arithmetic number, because the mean of its divisors is an integer number (50936708).

Almost surely, 2^152810121 is an apocalyptic number.

It is an amenable number.

152810121 is a deficient number, since it is larger than the sum of its proper divisors (50936711).

152810121 is an equidigital number, since it uses as much as digits as its factorization.

152810121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50936710.

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 152810121 is about 12361.6390903472. The cubic root of 152810121 is about 534.6267766996.

Adding to 152810121 its reverse (121018251), we get a palindrome (273828372).

The spelling of 152810121 in words is "one hundred fifty-two million, eight hundred ten thousand, one hundred twenty-one".