31086201 has 8 divisors (see below), whose sum is σ = 41475520. Its totient is φ = 20710512.

The previous prime is 31086199. The next prime is 31086227. The reversal of 31086201 is 10268013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31086201 - 2¹ = 31086199 is a prime.

It is a super-2 number, since 2×31086201² = 1932703785224802, which contains 22 as substring.

It is the 5576-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31086301) by changing a digit.

It is a nontrivial repunit in base 5575.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4620 + ... + 9138.

It is an arithmetic number, because the mean of its divisors is an integer number (5184440).

Almost surely, 2^31086201 is an apocalyptic number.

It is an amenable number.

31086201 is a deficient number, since it is larger than the sum of its proper divisors (10389319).

31086201 is a wasteful number, since it uses less digits than its factorization.

31086201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 31086201 is about 5575.5000672585. The cubic root of 31086201 is about 314.4289679782.

The spelling of 31086201 in words is "thirty-one million, eighty-six thousand, two hundred one".