137971854 has 24 divisors (see below), whose sum is σ = 304008120. Its totient is φ = 45210768.

The previous prime is 137971849. The next prime is 137971859. The reversal of 137971854 is 458179731.

It is an interprime number because it is at equal distance from previous prime (137971849) and next prime (137971859).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137971859) 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 11 ways as a sum of consecutive naturals, for example, 63897 + ... + 66020.

It is an arithmetic number, because the mean of its divisors is an integer number (12667005).

Almost surely, 2^137971854 is an apocalyptic number.

137971854 is an abundant number, since it is smaller than the sum of its proper divisors (166036266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137971854 is a wasteful number, since it uses less digits than its factorization.

137971854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129984 (or 129981 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 137971854 is about 11746.1420900651. The cubic root of 137971854 is about 516.7297903220.

It can be divided in two parts, 13797 and 1854, that added together give a palindrome (15651).

The spelling of 137971854 in words is "one hundred thirty-seven million, nine hundred seventy-one thousand, eight hundred fifty-four".