201656315 has 24 divisors (see below), whose sum is σ = 283756032. Its totient is φ = 137168640.

The previous prime is 201656311. The next prime is 201656321. The reversal of 201656315 is 513656102.

201656315 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 201656315 - 2² = 201656311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201656311) 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, 27875 + ... + 34355.

It is an arithmetic number, because the mean of its divisors is an integer number (11823168).

Almost surely, 2^201656315 is an apocalyptic number.

201656315 is a deficient number, since it is larger than the sum of its proper divisors (82099717).

201656315 is a wasteful number, since it uses less digits than its factorization.

201656315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627 (or 6620 counting only the distinct ones).

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

The square root of 201656315 is about 14200.5744602111. The cubic root of 201656315 is about 586.4134763528.

The spelling of 201656315 in words is "two hundred one million, six hundred fifty-six thousand, three hundred fifteen".