156056249 has 4 divisors (see below), whose sum is σ = 157809780. Its totient is φ = 154302720.

The previous prime is 156056213. The next prime is 156056287. The reversal of 156056249 is 942650651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942650651 = 7253 ⋅129967.

It can be written as a sum of positive squares in 2 ways, for example, as 11022400 + 145033849 = 3320^2 + 12043^2 .

It is a cyclic number.

It is not a de Polignac number, because 156056249 - 2⁸ = 156055993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156056149) 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, 876632 + ... + 876809.

It is an arithmetic number, because the mean of its divisors is an integer number (39452445).

Almost surely, 2^156056249 is an apocalyptic number.

It is an amenable number.

156056249 is a deficient number, since it is larger than the sum of its proper divisors (1753531).

156056249 is an equidigital number, since it uses as much as digits as its factorization.

156056249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753530.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 156056249 is about 12492.2475559845. The cubic root of 156056249 is about 538.3859543583.

The spelling of 156056249 in words is "one hundred fifty-six million, fifty-six thousand, two hundred forty-nine".