137522387 has 2 divisors, whose sum is σ = 137522388. Its totient is φ = 137522386.

The previous prime is 137522339. The next prime is 137522389. The reversal of 137522387 is 783225731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137522387 - 2¹⁴ = 137506003 is a prime.

Together with 137522389, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137522387.

It is not a weakly prime, because it can be changed into another prime (137522389) 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, 68761193 + 68761194.

It is an arithmetic number, because the mean of its divisors is an integer number (68761194).

Almost surely, 2^137522387 is an apocalyptic number.

137522387 is a deficient number, since it is larger than the sum of its proper divisors (1).

137522387 is an equidigital number, since it uses as much as digits as its factorization.

137522387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 137522387 is about 11726.9939455941. The cubic root of 137522387 is about 516.1680679110.

The spelling of 137522387 in words is "one hundred thirty-seven million, five hundred twenty-two thousand, three hundred eighty-seven".