156866149 has 8 divisors (see below), whose sum is σ = 173050560. Its totient is φ = 141002400.

The previous prime is 156866131. The next prime is 156866179. The reversal of 156866149 is 941668651.

156866149 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 156866149 - 2⁵ = 156866117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156866099 and 156866108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156866179) 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, 79137 + ... + 81094.

It is an arithmetic number, because the mean of its divisors is an integer number (21631320).

Almost surely, 2^156866149 is an apocalyptic number.

It is an amenable number.

156866149 is a deficient number, since it is larger than the sum of its proper divisors (16184411).

156866149 is a wasteful number, since it uses less digits than its factorization.

156866149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160331.

The product of its digits is 311040, while the sum is 46.

The square root of 156866149 is about 12524.6217108542. The cubic root of 156866149 is about 539.3157187589.

The spelling of 156866149 in words is "one hundred fifty-six million, eight hundred sixty-six thousand, one hundred forty-nine".