137423628 has 30 divisors (see below), whose sum is σ = 359253356. Its totient is φ = 45807768.

The previous prime is 137423609. The next prime is 137423653. The reversal of 137423628 is 826324731.

It is a happy number.

137423628 is a `hidden beast` number, since 1 + 3 + 7 + 4 + 23 + 628 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 137423592 and 137423601.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 211750 + ... + 212397.

Almost surely, 2^137423628 is an apocalyptic number.

137423628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

137423628 is an abundant number, since it is smaller than the sum of its proper divisors (221829728).

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

137423628 is a wasteful number, since it uses less digits than its factorization.

137423628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424163 (or 424152 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 137423628 is about 11722.7824342176. The cubic root of 137423628 is about 516.0444796703.

The spelling of 137423628 in words is "one hundred thirty-seven million, four hundred twenty-three thousand, six hundred twenty-eight".