201896164 has 6 divisors (see below), whose sum is σ = 353318294. Its totient is φ = 100948080.

The previous prime is 201896141. The next prime is 201896179. The reversal of 201896164 is 461698102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 201867264 + 28900 = 14208^2 + 170^2 .

It is a super-2 number, since 2×201896164² = 81524122075829792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25237017 + ... + 25237024.

Almost surely, 2^201896164 is an apocalyptic number.

It is an amenable number.

201896164 is a deficient number, since it is larger than the sum of its proper divisors (151422130).

201896164 is a wasteful number, since it uses less digits than its factorization.

201896164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50474045 (or 50474043 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 201896164 is about 14209.0169962598. The cubic root of 201896164 is about 586.6458766450.

The spelling of 201896164 in words is "two hundred one million, eight hundred ninety-six thousand, one hundred sixty-four".