137821475 has 24 divisors (see below), whose sum is σ = 187726080. Its totient is φ = 99540000.

The previous prime is 137821447. The next prime is 137821477. The reversal of 137821475 is 574128731.

It is not a de Polignac number, because 137821475 - 2¹⁴ = 137805091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137821477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39866 + ... + 43184.

It is an arithmetic number, because the mean of its divisors is an integer number (7821920).

Almost surely, 2^137821475 is an apocalyptic number.

137821475 is a deficient number, since it is larger than the sum of its proper divisors (49904605).

137821475 is a wasteful number, since it uses less digits than its factorization.

137821475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3486 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 137821475 is about 11739.7391367952. The cubic root of 137821475 is about 516.5419898033.

The spelling of 137821475 in words is "one hundred thirty-seven million, eight hundred twenty-one thousand, four hundred seventy-five".