137663732 has 12 divisors (see below), whose sum is σ = 246787716. Its totient is φ = 67152960.

The previous prime is 137663731. The next prime is 137663749. The reversal of 137663732 is 237366731.

It can be written as a sum of positive squares in 2 ways, for example, as 42328036 + 95335696 = 6506^2 + 9764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137663731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419543 + ... + 419870.

It is an arithmetic number, because the mean of its divisors is an integer number (20565643).

Almost surely, 2^137663732 is an apocalyptic number.

It is an amenable number.

137663732 is a deficient number, since it is larger than the sum of its proper divisors (109123984).

137663732 is a wasteful number, since it uses less digits than its factorization.

137663732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839458 (or 839456 counting only the distinct ones).

The product of its digits is 95256, while the sum is 38.

The square root of 137663732 is about 11733.0188783620. The cubic root of 137663732 is about 516.3448459038.

The spelling of 137663732 in words is "one hundred thirty-seven million, six hundred sixty-three thousand, seven hundred thirty-two".