137644983 has 24 divisors (see below), whose sum is σ = 228223008. Its totient is φ = 78308352.

The previous prime is 137644979. The next prime is 137644993. The reversal of 137644983 is 389446731.

137644983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137644983 - 2² = 137644979 is a prime.

It is a super-2 number, since 2×137644983² = 37892282690140578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137644963) 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, 9991 + ... + 19367.

It is an arithmetic number, because the mean of its divisors is an integer number (9509292).

Almost surely, 2^137644983 is an apocalyptic number.

137644983 is a deficient number, since it is larger than the sum of its proper divisors (90578025).

137644983 is a wasteful number, since it uses less digits than its factorization.

137644983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9623 (or 9620 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 137644983 is about 11732.2198666748. The cubic root of 137644983 is about 516.3214037841.

The spelling of 137644983 in words is "one hundred thirty-seven million, six hundred forty-four thousand, nine hundred eighty-three".