137522389 has 2 divisors, whose sum is σ = 137522390. Its totient is φ = 137522388.

The previous prime is 137522387. The next prime is 137522419. The reversal of 137522389 is 983225731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133287025 + 4235364 = 11545^2 + 2058^2 .

It is a cyclic number.

It is not a de Polignac number, because 137522389 - 2¹ = 137522387 is a prime.

Together with 137522387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137522387) 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, 68761194 + 68761195.

It is an arithmetic number, because the mean of its divisors is an integer number (68761195).

Almost surely, 2^137522389 is an apocalyptic number.

It is an amenable number.

137522389 is a deficient number, since it is larger than the sum of its proper divisors (1).

137522389 is an equidigital number, since it uses as much as digits as its factorization.

137522389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 137522389 is about 11726.9940308674. The cubic root of 137522389 is about 516.1680704133.

The spelling of 137522389 in words is "one hundred thirty-seven million, five hundred twenty-two thousand, three hundred eighty-nine".