31066401 has 8 divisors (see below), whose sum is σ = 41448064. Its totient is φ = 20697840.

The previous prime is 31066393. The next prime is 31066411. The reversal of 31066401 is 10466013.

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

It is not a de Polignac number, because 31066401 - 2³ = 31066393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31066411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6075 + ... + 9951.

It is an arithmetic number, because the mean of its divisors is an integer number (5181008).

Almost surely, 2^31066401 is an apocalyptic number.

It is an amenable number.

31066401 is a deficient number, since it is larger than the sum of its proper divisors (10381663).

31066401 is a wasteful number, since it uses less digits than its factorization.

31066401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 31066401 is about 5573.7241589444. The cubic root of 31066401 is about 314.3621964887.

The spelling of 31066401 in words is "thirty-one million, sixty-six thousand, four hundred one".