375564121 has 2 divisors, whose sum is σ = 375564122. Its totient is φ = 375564120.

The previous prime is 375564109. The next prime is 375564131. The reversal of 375564121 is 121465573.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217710025 + 157854096 = 14755^2 + 12564^2 .

It is a cyclic number.

It is not a de Polignac number, because 375564121 - 2²⁷ = 241346393 is a prime.

It is not a weakly prime, because it can be changed into another prime (375564131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187782060 + 187782061.

It is an arithmetic number, because the mean of its divisors is an integer number (187782061).

Almost surely, 2^375564121 is an apocalyptic number.

It is an amenable number.

375564121 is a deficient number, since it is larger than the sum of its proper divisors (1).

375564121 is an equidigital number, since it uses as much as digits as its factorization.

375564121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 375564121 is about 19379.4767989231. The cubic root of 375564121 is about 721.4862054366.

It can be divided in two parts, 3755 and 64121, that added together give a palindrome (67876).

The spelling of 375564121 in words is "three hundred seventy-five million, five hundred sixty-four thousand, one hundred twenty-one".