156152649 has 4 divisors (see below), whose sum is σ = 208203536. Its totient is φ = 104101764.

The previous prime is 156152603. The next prime is 156152653. The reversal of 156152649 is 946251651.

156152649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 156152649 - 2²⁴ = 139375433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156152699) 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, 26025439 + ... + 26025444.

It is an arithmetic number, because the mean of its divisors is an integer number (52050884).

Almost surely, 2^156152649 is an apocalyptic number.

It is an amenable number.

156152649 is a deficient number, since it is larger than the sum of its proper divisors (52050887).

156152649 is an equidigital number, since it uses as much as digits as its factorization.

156152649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52050886.

The product of its digits is 64800, while the sum is 39.

The square root of 156152649 is about 12496.1053532691. The cubic root of 156152649 is about 538.4967898706.

The spelling of 156152649 in words is "one hundred fifty-six million, one hundred fifty-two thousand, six hundred forty-nine".