37945361 has 2 divisors, whose sum is σ = 37945362. Its totient is φ = 37945360.

The previous prime is 37945351. The next prime is 37945363. The reversal of 37945361 is 16354973.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32035600 + 5909761 = 5660^2 + 2431^2 .

It is an emirp because it is prime and its reverse (16354973) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37945361 is a prime.

Together with 37945363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (37945363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18972680 + 18972681.

It is an arithmetic number, because the mean of its divisors is an integer number (18972681).

Almost surely, 2^37945361 is an apocalyptic number.

It is an amenable number.

37945361 is a deficient number, since it is larger than the sum of its proper divisors (1).

37945361 is an equidigital number, since it uses as much as digits as its factorization.

37945361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 37945361 is about 6159.9806006188. The cubic root of 37945361 is about 336.0363274451.

The spelling of 37945361 in words is "thirty-seven million, nine hundred forty-five thousand, three hundred sixty-one".