156190949 has 8 divisors (see below), whose sum is σ = 160777848. Its totient is φ = 151623360.

The previous prime is 156190843. The next prime is 156190967. The reversal of 156190949 is 949091651.

156190949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15602500 + 140588449 = 3950^2 + 11857^2 .

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 156190949 - 2⁸ = 156190693 is a prime.

It is a super-2 number, since 2×156190949² = 48791225099041202, which 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 (156190049) 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, 12479 + ... + 21635.

It is an arithmetic number, because the mean of its divisors is an integer number (20097231).

Almost surely, 2^156190949 is an apocalyptic number.

It is an amenable number.

156190949 is a deficient number, since it is larger than the sum of its proper divisors (4586899).

156190949 is an equidigital number, since it uses as much as digits as its factorization.

156190949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 156190949 is about 12497.6377367885. The cubic root of 156190949 is about 538.5408124797.

The spelling of 156190949 in words is "one hundred fifty-six million, one hundred ninety thousand, nine hundred forty-nine".