201880831 has 16 divisors (see below), whose sum is σ = 218350080. Its totient is φ = 185952640.

The previous prime is 201880813. The next prime is 201880837. The reversal of 201880831 is 138088102.

It is a cyclic number.

It is not a de Polignac number, because 201880831 - 2⁵ = 201880799 is a prime.

It is a super-2 number, since 2×201880831² = 81511739850501122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201880793 and 201880802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201880837) 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, 432060 + ... + 432526.

It is an arithmetic number, because the mean of its divisors is an integer number (13646880).

Almost surely, 2^201880831 is an apocalyptic number.

201880831 is a deficient number, since it is larger than the sum of its proper divisors (16469249).

201880831 is a wasteful number, since it uses less digits than its factorization.

201880831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 201880831 is about 14208.4774342644. The cubic root of 201880831 is about 586.6310253327.

The spelling of 201880831 in words is "two hundred one million, eight hundred eighty thousand, eight hundred thirty-one".