137681512 has 8 divisors (see below), whose sum is σ = 258152850. Its totient is φ = 68840752.

The previous prime is 137681507. The next prime is 137681539. The reversal of 137681512 is 215186731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 116942596 + 20738916 = 10814^2 + 4554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×137681512² = 37912397493212288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8605087 + ... + 8605102.

Almost surely, 2^137681512 is an apocalyptic number.

It is an amenable number.

137681512 is a deficient number, since it is larger than the sum of its proper divisors (120471338).

137681512 is a wasteful number, since it uses less digits than its factorization.

137681512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17210195 (or 17210191 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 137681512 is about 11733.7765446594. The cubic root of 137681512 is about 516.3670745039.

The spelling of 137681512 in words is "one hundred thirty-seven million, six hundred eighty-one thousand, five hundred twelve".