137621522 has 16 divisors (see below), whose sum is σ = 217665600. Its totient is φ = 65078640.

The previous prime is 137621521. The next prime is 137621531. The reversal of 137621522 is 225126731.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (137621521) 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 in 7 ways as a sum of consecutive naturals, for example, 22379 + ... + 27857.

It is an arithmetic number, because the mean of its divisors is an integer number (13604100).

Almost surely, 2^137621522 is an apocalyptic number.

137621522 is a deficient number, since it is larger than the sum of its proper divisors (80044078).

137621522 is a wasteful number, since it uses less digits than its factorization.

137621522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161.

The product of its digits is 5040, while the sum is 29.

The square root of 137621522 is about 11731.2199706595. The cubic root of 137621522 is about 516.2920671906.

The spelling of 137621522 in words is "one hundred thirty-seven million, six hundred twenty-one thousand, five hundred twenty-two".