137118997 has 2 divisors, whose sum is σ = 137118998. Its totient is φ = 137118996.

The previous prime is 137118941. The next prime is 137119013. The reversal of 137118997 is 799811731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75794436 + 61324561 = 8706^2 + 7831^2 .

It is an emirp because it is prime and its reverse (799811731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137118997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137113997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68559498 + 68559499.

It is an arithmetic number, because the mean of its divisors is an integer number (68559499).

Almost surely, 2^137118997 is an apocalyptic number.

It is an amenable number.

137118997 is a deficient number, since it is larger than the sum of its proper divisors (1).

137118997 is an equidigital number, since it uses as much as digits as its factorization.

137118997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 46.

The square root of 137118997 is about 11709.7821072811. The cubic root of 137118997 is about 515.6628872411.

The spelling of 137118997 in words is "one hundred thirty-seven million, one hundred eighteen thousand, nine hundred ninety-seven".