156849023 has 12 divisors (see below), whose sum is σ = 163197528. Its totient is φ = 150739680.

The previous prime is 156848999. The next prime is 156849073. The reversal of 156849023 is 320948651.

It is a happy number.

It is not a de Polignac number, because 156849023 - 2⁸ = 156848767 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 (156849073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353840 + ... + 354282.

It is an arithmetic number, because the mean of its divisors is an integer number (13599794).

Almost surely, 2^156849023 is an apocalyptic number.

156849023 is a deficient number, since it is larger than the sum of its proper divisors (6348505).

156849023 is an equidigital number, since it uses as much as digits as its factorization.

156849023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 156849023 is about 12523.9379988884. The cubic root of 156849023 is about 539.2960912884.

The spelling of 156849023 in words is "one hundred fifty-six million, eight hundred forty-nine thousand, twenty-three".