156889369 has 8 divisors (see below), whose sum is σ = 193094720. Its totient is φ = 124132176.

The previous prime is 156889367. The next prime is 156889373. The reversal of 156889369 is 963988651.

It is a happy number.

156889369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156889369 - 2¹ = 156889367 is a prime.

It is a super-2 number, since 2×156889369² = 49228548210436322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156889363) 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, 861939 + ... + 862120.

It is an arithmetic number, because the mean of its divisors is an integer number (24136840).

Almost surely, 2^156889369 is an apocalyptic number.

It is an amenable number.

156889369 is a deficient number, since it is larger than the sum of its proper divisors (36205351).

156889369 is a wasteful number, since it uses less digits than its factorization.

156889369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724079.

The product of its digits is 2799360, while the sum is 55.

The square root of 156889369 is about 12525.5486506580. The cubic root of 156889369 is about 539.3423280544.

The spelling of 156889369 in words is "one hundred fifty-six million, eight hundred eighty-nine thousand, three hundred sixty-nine".