31366001 has 2 divisors, whose sum is σ = 31366002. Its totient is φ = 31366000.

The previous prime is 31365989. The next prime is 31366019. The reversal of 31366001 is 10066313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22657600 + 8708401 = 4760^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 31366001 - 2¹⁸ = 31103857 is a prime.

It is not a weakly prime, because it can be changed into another prime (31366051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15683000 + 15683001.

It is an arithmetic number, because the mean of its divisors is an integer number (15683001).

Almost surely, 2^31366001 is an apocalyptic number.

It is an amenable number.

31366001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31366001 is an equidigital number, since it uses as much as digits as its factorization.

31366001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 31366001 is about 5600.5357779412. The cubic root of 31366001 is about 315.3695201625.

The spelling of 31366001 in words is "thirty-one million, three hundred sixty-six thousand, one".