137919438 has 24 divisors (see below), whose sum is σ = 301474368. Its totient is φ = 45565632.

The previous prime is 137919437. The next prime is 137919493. The reversal of 137919438 is 834919731.

It is a junction number, because it is equal to n+sod(n) for n = 137919393 and 137919402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137919437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31870 + ... + 35937.

It is an arithmetic number, because the mean of its divisors is an integer number (12561432).

Almost surely, 2^137919438 is an apocalyptic number.

137919438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

137919438 is an abundant number, since it is smaller than the sum of its proper divisors (163554930).

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

137919438 is a wasteful number, since it uses less digits than its factorization.

137919438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67928 (or 67925 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 137919438 is about 11743.9106774532. The cubic root of 137919438 is about 516.6643462030.

The spelling of 137919438 in words is "one hundred thirty-seven million, nine hundred nineteen thousand, four hundred thirty-eight".