137493637943 has 2 divisors, whose sum is σ = 137493637944. Its totient is φ = 137493637942.

The previous prime is 137493637903. The next prime is 137493637951. The reversal of 137493637943 is 349736394731.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (349736394731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137493637943 - 2³⁴ = 120313768759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137493637903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68746818971 + 68746818972.

It is an arithmetic number, because the mean of its divisors is an integer number (68746818972).

Almost surely, 2^137493637943 is an apocalyptic number.

137493637943 is a deficient number, since it is larger than the sum of its proper divisors (1).

137493637943 is an equidigital number, since it uses as much as digits as its factorization.

137493637943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30862944, while the sum is 59.

The spelling of 137493637943 in words is "one hundred thirty-seven billion, four hundred ninety-three million, six hundred thirty-seven thousand, nine hundred forty-three".