137443740 has 48 divisors (see below), whose sum is σ = 439821312. Its totient is φ = 31415616.

The previous prime is 137443721. The next prime is 137443751. The reversal of 137443740 is 47344731.

137443740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163204 + ... + 164043.

It is an arithmetic number, because the mean of its divisors is an integer number (9162944).

Almost surely, 2^137443740 is an apocalyptic number.

137443740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137443740 is an abundant number, since it is smaller than the sum of its proper divisors (302377572).

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

137443740 is a wasteful number, since it uses less digits than its factorization.

137443740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327266 (or 327264 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 137443740 is about 11723.6402196587. The cubic root of 137443740 is about 516.0696528773.

Subtracting from 137443740 its reverse (47344731), we obtain a palindrome (90099009).

The spelling of 137443740 in words is "one hundred thirty-seven million, four hundred forty-three thousand, seven hundred forty".