37481189 has 2 divisors, whose sum is σ = 37481190. Its totient is φ = 37481188.

The previous prime is 37481183. The next prime is 37481203. The reversal of 37481189 is 98118473.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36204289 + 1276900 = 6017^2 + 1130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37481189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37481183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18740594 + 18740595.

It is an arithmetic number, because the mean of its divisors is an integer number (18740595).

Almost surely, 2^37481189 is an apocalyptic number.

It is an amenable number.

37481189 is a deficient number, since it is larger than the sum of its proper divisors (1).

37481189 is an equidigital number, since it uses as much as digits as its factorization.

37481189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 37481189 is about 6122.1882525777. The cubic root of 37481189 is about 334.6604981103.

The spelling of 37481189 in words is "thirty-seven million, four hundred eighty-one thousand, one hundred eighty-nine".