373981001 has 2 divisors, whose sum is σ = 373981002. Its totient is φ = 373981000.

The previous prime is 373980961. The next prime is 373981031. The reversal of 373981001 is 100189373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211673401 + 162307600 = 14549^2 + 12740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-373981001 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (373981031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186990500 + 186990501.

It is an arithmetic number, because the mean of its divisors is an integer number (186990501).

Almost surely, 2^373981001 is an apocalyptic number.

It is an amenable number.

373981001 is a deficient number, since it is larger than the sum of its proper divisors (1).

373981001 is an equidigital number, since it uses as much as digits as its factorization.

373981001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 373981001 is about 19338.5883921242. The cubic root of 373981001 is about 720.4710144609.

The spelling of 373981001 in words is "three hundred seventy-three million, nine hundred eighty-one thousand, one".