137226691727 has 2 divisors, whose sum is σ = 137226691728. Its totient is φ = 137226691726.

The previous prime is 137226691699. The next prime is 137226691751. The reversal of 137226691727 is 727196622731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137226691727 is a prime.

It is a super-3 number, since 3×137226691727³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137226693727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68613345863 + 68613345864.

It is an arithmetic number, because the mean of its divisors is an integer number (68613345864).

Almost surely, 2^137226691727 is an apocalyptic number.

137226691727 is a deficient number, since it is larger than the sum of its proper divisors (1).

137226691727 is an equidigital number, since it uses as much as digits as its factorization.

137226691727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 53.

The spelling of 137226691727 in words is "one hundred thirty-seven billion, two hundred twenty-six million, six hundred ninety-one thousand, seven hundred twenty-seven".