137742684227 has 2 divisors, whose sum is σ = 137742684228. Its totient is φ = 137742684226.

The previous prime is 137742684217. The next prime is 137742684239. The reversal of 137742684227 is 722486247731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137742684227 - 2¹⁶ = 137742618691 is a prime.

It is not a weakly prime, because it can be changed into another prime (137742684217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68871342113 + 68871342114.

It is an arithmetic number, because the mean of its divisors is an integer number (68871342114).

Almost surely, 2^137742684227 is an apocalyptic number.

137742684227 is a deficient number, since it is larger than the sum of its proper divisors (1).

137742684227 is an equidigital number, since it uses as much as digits as its factorization.

137742684227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6322176, while the sum is 53.

The spelling of 137742684227 in words is "one hundred thirty-seven billion, seven hundred forty-two million, six hundred eighty-four thousand, two hundred twenty-seven".