137138974 has 8 divisors (see below), whose sum is σ = 235095408. Its totient is φ = 58773840.

The previous prime is 137138971. The next prime is 137138977. The reversal of 137138974 is 479831731.

It is an interprime number because it is at equal distance from previous prime (137138971) and next prime (137138977).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 137138974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137138971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4897807 + ... + 4897834.

It is an arithmetic number, because the mean of its divisors is an integer number (29386926).

Almost surely, 2^137138974 is an apocalyptic number.

137138974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

137138974 is a deficient number, since it is larger than the sum of its proper divisors (97956434).

137138974 is an equidigital number, since it uses as much as digits as its factorization.

137138974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9795650.

The product of its digits is 127008, while the sum is 43.

The square root of 137138974 is about 11710.6350809851. The cubic root of 137138974 is about 515.6879285009.

The spelling of 137138974 in words is "one hundred thirty-seven million, one hundred thirty-eight thousand, nine hundred seventy-four".