137872474 has 16 divisors (see below), whose sum is σ = 219854880. Its totient is φ = 64659600.

The previous prime is 137872457. The next prime is 137872477. The reversal of 137872474 is 474278731.

137872474 = 1118² + 1119² + ... + 1218².

It is a self number, because there is not a number n which added to its sum of digits gives 137872474.

It is not an unprimeable number, because it can be changed into a prime (137872477) 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 in 7 ways as a sum of consecutive naturals, for example, 14124 + ... + 21799.

It is an arithmetic number, because the mean of its divisors is an integer number (13740930).

Almost surely, 2^137872474 is an apocalyptic number.

137872474 is a deficient number, since it is larger than the sum of its proper divisors (81982406).

137872474 is a wasteful number, since it uses less digits than its factorization.

137872474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36045.

The product of its digits is 263424, while the sum is 43.

The square root of 137872474 is about 11741.9110028990. The cubic root of 137872474 is about 516.6056951059.

It can be divided in two parts, 13787 and 2474, that added together give a palindrome (16261).

The spelling of 137872474 in words is "one hundred thirty-seven million, eight hundred seventy-two thousand, four hundred seventy-four".