156564101 has 8 divisors (see below), whose sum is σ = 165892824. Its totient is φ = 147248640.

The previous prime is 156564091. The next prime is 156564103. The reversal of 156564101 is 101465651.

156564101 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 49420900 + 107143201 = 7030^2 + 10351^2 .

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 156564101 - 2²⁶ = 89455237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156564103) 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, 31571 + ... + 36191.

It is an arithmetic number, because the mean of its divisors is an integer number (20736603).

Almost surely, 2^156564101 is an apocalyptic number.

It is an amenable number.

156564101 is a deficient number, since it is larger than the sum of its proper divisors (9328723).

156564101 is a wasteful number, since it uses less digits than its factorization.

156564101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 156564101 is about 12512.5577321345. The cubic root of 156564101 is about 538.9693429853.

The spelling of 156564101 in words is "one hundred fifty-six million, five hundred sixty-four thousand, one hundred one".