137851530 has 16 divisors (see below), whose sum is σ = 330843744. Its totient is φ = 36760400.

The previous prime is 137851481. The next prime is 137851547. The reversal of 137851530 is 35158731.

It is a super-4 number, since 4×137851530⁴ (a number of 34 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 137851491 and 137851500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2297496 + ... + 2297555.

It is an arithmetic number, because the mean of its divisors is an integer number (20677734).

Almost surely, 2^137851530 is an apocalyptic number.

137851530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137851530 is an abundant number, since it is smaller than the sum of its proper divisors (192992214).

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

137851530 is a wasteful number, since it uses less digits than its factorization.

137851530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595061.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 137851530 is about 11741.0191210133. The cubic root of 137851530 is about 516.5795348500.

The spelling of 137851530 in words is "one hundred thirty-seven million, eight hundred fifty-one thousand, five hundred thirty".