373725281 has 2 divisors, whose sum is σ = 373725282. Its totient is φ = 373725280.

The previous prime is 373725257. The next prime is 373725301. The reversal of 373725281 is 182527373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237653056 + 136072225 = 15416^2 + 11665^2 .

It is a cyclic number.

It is not a de Polignac number, because 373725281 - 2⁶ = 373725217 is a prime.

It is a super-2 number, since 2×373725281² = 279341171317057922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (373725211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186862640 + 186862641.

It is an arithmetic number, because the mean of its divisors is an integer number (186862641).

Almost surely, 2^373725281 is an apocalyptic number.

It is an amenable number.

373725281 is a deficient number, since it is larger than the sum of its proper divisors (1).

373725281 is an equidigital number, since it uses as much as digits as its factorization.

373725281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 373725281 is about 19331.9756103715. The cubic root of 373725281 is about 720.3067629293.

The spelling of 373725281 in words is "three hundred seventy-three million, seven hundred twenty-five thousand, two hundred eighty-one".