137273853991 has 2 divisors, whose sum is σ = 137273853992. Its totient is φ = 137273853990.

The previous prime is 137273853967. The next prime is 137273854043. The reversal of 137273853991 is 199358372731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137273853991 - 2¹³ = 137273845799 is a prime.

It is a super-2 number, since 2×137273853991² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137273853491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68636926995 + 68636926996.

It is an arithmetic number, because the mean of its divisors is an integer number (68636926996).

Almost surely, 2^137273853991 is an apocalyptic number.

137273853991 is a deficient number, since it is larger than the sum of its proper divisors (1).

137273853991 is an equidigital number, since it uses as much as digits as its factorization.

137273853991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 58.

The spelling of 137273853991 in words is "one hundred thirty-seven billion, two hundred seventy-three million, eight hundred fifty-three thousand, nine hundred ninety-one".