137294231 has 2 divisors, whose sum is σ = 137294232. Its totient is φ = 137294230.

The previous prime is 137294173. The next prime is 137294251. The reversal of 137294231 is 132492731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137294231 - 2⁶ = 137294167 is a prime.

It is a super-2 number, since 2×137294231² = 37699411731762722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137294251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68647115 + 68647116.

It is an arithmetic number, because the mean of its divisors is an integer number (68647116).

Almost surely, 2^137294231 is an apocalyptic number.

137294231 is a deficient number, since it is larger than the sum of its proper divisors (1).

137294231 is an equidigital number, since it uses as much as digits as its factorization.

137294231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 137294231 is about 11717.2620948752. The cubic root of 137294231 is about 515.8824610092.

The spelling of 137294231 in words is "one hundred thirty-seven million, two hundred ninety-four thousand, two hundred thirty-one".