374131909 has 2 divisors, whose sum is σ = 374131910. Its totient is φ = 374131908.

The previous prime is 374131897. The next prime is 374131931. The reversal of 374131909 is 909131473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355209409 + 18922500 = 18847^2 + 4350^2 .

It is a cyclic number.

It is not a de Polignac number, because 374131909 - 2⁹ = 374131397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374131969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187065954 + 187065955.

It is an arithmetic number, because the mean of its divisors is an integer number (187065955).

Almost surely, 2^374131909 is an apocalyptic number.

It is an amenable number.

374131909 is a deficient number, since it is larger than the sum of its proper divisors (1).

374131909 is an equidigital number, since it uses as much as digits as its factorization.

374131909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 374131909 is about 19342.4897311592. The cubic root of 374131909 is about 720.5679090613.

The spelling of 374131909 in words is "three hundred seventy-four million, one hundred thirty-one thousand, nine hundred nine".