37404161 has 2 divisors, whose sum is σ = 37404162. Its totient is φ = 37404160.

The previous prime is 37404137. The next prime is 37404203. The reversal of 37404161 is 16140473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36529936 + 874225 = 6044^2 + 935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37404161 is a prime.

It is a super-2 number, since 2×37404161² = 2798142520227842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 37404161.

It is not a weakly prime, because it can be changed into another prime (37404121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18702080 + 18702081.

It is an arithmetic number, because the mean of its divisors is an integer number (18702081).

Almost surely, 2^37404161 is an apocalyptic number.

It is an amenable number.

37404161 is a deficient number, since it is larger than the sum of its proper divisors (1).

37404161 is an equidigital number, since it uses as much as digits as its factorization.

37404161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 37404161 is about 6115.8941292341. The cubic root of 37404161 is about 334.4310860704.

The spelling of 37404161 in words is "thirty-seven million, four hundred four thousand, one hundred sixty-one".