155636201 has 24 divisors (see below), whose sum is σ = 191520000. Its totient is φ = 125756064.

The previous prime is 155636191. The next prime is 155636203. The reversal of 155636201 is 102636551.

155636201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155636201 - 2²⁶ = 88527337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155636203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324680 + ... + 325158.

It is an arithmetic number, because the mean of its divisors is an integer number (7980000).

Almost surely, 2^155636201 is an apocalyptic number.

It is an amenable number.

155636201 is a deficient number, since it is larger than the sum of its proper divisors (35883799).

155636201 is a wasteful number, since it uses less digits than its factorization.

155636201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 155636201 is about 12475.4238805742. The cubic root of 155636201 is about 537.9024723829.

The spelling of 155636201 in words is "one hundred fifty-five million, six hundred thirty-six thousand, two hundred one".