137843972 has 24 divisors (see below), whose sum is σ = 276244416. Its totient is φ = 58956768.

The previous prime is 137843969. The next prime is 137843977. The reversal of 137843972 is 279348731.

It is not an unprimeable number, because it can be changed into a prime (137843977) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9938 + ... + 19350.

It is an arithmetic number, because the mean of its divisors is an integer number (11510184).

Almost surely, 2^137843972 is an apocalyptic number.

It is an amenable number.

137843972 is an abundant number, since it is smaller than the sum of its proper divisors (138400444).

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

137843972 is a wasteful number, since it uses less digits than its factorization.

137843972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947 (or 9945 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 137843972 is about 11740.6972535706. The cubic root of 137843972 is about 516.5700938244.

The spelling of 137843972 in words is "one hundred thirty-seven million, eight hundred forty-three thousand, nine hundred seventy-two".