31466401 has 2 divisors, whose sum is σ = 31466402. Its totient is φ = 31466400.

The previous prime is 31466389. The next prime is 31466503. The reversal of 31466401 is 10466413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 15023376 = 4055^2 + 3876^2 .

It is a cyclic number.

It is not a de Polignac number, because 31466401 - 2¹⁹ = 30942113 is a prime.

It is not a weakly prime, because it can be changed into another prime (31466101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15733200 + 15733201.

It is an arithmetic number, because the mean of its divisors is an integer number (15733201).

Almost surely, 2^31466401 is an apocalyptic number.

It is an amenable number.

31466401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31466401 is an equidigital number, since it uses as much as digits as its factorization.

31466401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 31466401 is about 5609.4920447399. The cubic root of 31466401 is about 315.7056524406.

The spelling of 31466401 in words is "thirty-one million, four hundred sixty-six thousand, four hundred one".