213956601 has 16 divisors (see below), whose sum is σ = 291271680. Its totient is φ = 139651200.

The previous prime is 213956593. The next prime is 213956621. The reversal of 213956601 is 106659312.

It is a happy number.

It is not a de Polignac number, because 213956601 - 2³ = 213956593 is a prime.

It is a super-2 number, since 2×213956601² = 91554854222946402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213956621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94440 + ... + 96678.

It is an arithmetic number, because the mean of its divisors is an integer number (18204480).

Almost surely, 2^213956601 is an apocalyptic number.

It is an amenable number.

213956601 is a deficient number, since it is larger than the sum of its proper divisors (77315079).

213956601 is a wasteful number, since it uses less digits than its factorization.

213956601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 213956601 is about 14627.2554158325. The cubic root of 213956601 is about 598.1019659983.

The spelling of 213956601 in words is "two hundred thirteen million, nine hundred fifty-six thousand, six hundred one".