137779307 has 2 divisors, whose sum is σ = 137779308. Its totient is φ = 137779306.

The previous prime is 137779273. The next prime is 137779321. The reversal of 137779307 is 703977731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137779307 - 2¹⁰ = 137778283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137779357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68889653 + 68889654.

It is an arithmetic number, because the mean of its divisors is an integer number (68889654).

Almost surely, 2^137779307 is an apocalyptic number.

137779307 is a deficient number, since it is larger than the sum of its proper divisors (1).

137779307 is an equidigital number, since it uses as much as digits as its factorization.

137779307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194481, while the sum is 44.

The square root of 137779307 is about 11737.9430480813. The cubic root of 137779307 is about 516.4893038572.

The spelling of 137779307 in words is "one hundred thirty-seven million, seven hundred seventy-nine thousand, three hundred seven".