137994158391 has 16 divisors (see below), whose sum is σ = 192302096640. Its totient is φ = 87854088960.

The previous prime is 137994158387. The next prime is 137994158411. The reversal of 137994158391 is 193851499731.

It is not a de Polignac number, because 137994158391 - 2² = 137994158387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137994158311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572730 + ... + 1658151.

It is an arithmetic number, because the mean of its divisors is an integer number (12018881040).

Almost surely, 2^137994158391 is an apocalyptic number.

137994158391 is a deficient number, since it is larger than the sum of its proper divisors (54307938249).

137994158391 is a wasteful number, since it uses less digits than its factorization.

137994158391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231526.

The product of its digits is 7348320, while the sum is 60.

The spelling of 137994158391 in words is "one hundred thirty-seven billion, nine hundred ninety-four million, one hundred fifty-eight thousand, three hundred ninety-one".