137371693 has 2 divisors, whose sum is σ = 137371694. Its totient is φ = 137371692.

The previous prime is 137371669. The next prime is 137371697. The reversal of 137371693 is 396173731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111788329 + 25583364 = 10573^2 + 5058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137371693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137371697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68685846 + 68685847.

It is an arithmetic number, because the mean of its divisors is an integer number (68685847).

Almost surely, 2^137371693 is an apocalyptic number.

It is an amenable number.

137371693 is a deficient number, since it is larger than the sum of its proper divisors (1).

137371693 is an equidigital number, since it uses as much as digits as its factorization.

137371693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 40.

The square root of 137371693 is about 11720.5670937886. The cubic root of 137371693 is about 515.9794638082.

The spelling of 137371693 in words is "one hundred thirty-seven million, three hundred seventy-one thousand, six hundred ninety-three".