137731338 has 48 divisors (see below), whose sum is σ = 309194496. Its totient is φ = 44281440.

The previous prime is 137731309. The next prime is 137731339. The reversal of 137731338 is 833137731.

It is not an unprimeable number, because it can be changed into a prime (137731339) 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, 58920 + ... + 61212.

It is an arithmetic number, because the mean of its divisors is an integer number (6441552).

Almost surely, 2^137731338 is an apocalyptic number.

137731338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

137731338 is an abundant number, since it is smaller than the sum of its proper divisors (171463158).

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

137731338 is a wasteful number, since it uses less digits than its factorization.

137731338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2416 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 137731338 is about 11735.8995394473. The cubic root of 137731338 is about 516.4293568986.

The spelling of 137731338 in words is "one hundred thirty-seven million, seven hundred thirty-one thousand, three hundred thirty-eight".