137373497 has 2 divisors, whose sum is σ = 137373498. Its totient is φ = 137373496.

The previous prime is 137373491. The next prime is 137373499. The reversal of 137373497 is 794373731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117267241 + 20106256 = 10829^2 + 4484^2 .

It is an emirp because it is prime and its reverse (794373731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137373497 - 2⁸ = 137373241 is a prime.

Together with 137373499, 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 (137373491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68686748 + 68686749.

It is an arithmetic number, because the mean of its divisors is an integer number (68686749).

Almost surely, 2^137373497 is an apocalyptic number.

It is an amenable number.

137373497 is a deficient number, since it is larger than the sum of its proper divisors (1).

137373497 is an equidigital number, since it uses as much as digits as its factorization.

137373497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 44.

The square root of 137373497 is about 11720.6440522695. The cubic root of 137373497 is about 515.9817224562.

The spelling of 137373497 in words is "one hundred thirty-seven million, three hundred seventy-three thousand, four hundred ninety-seven".