137869988 has 12 divisors (see below), whose sum is σ = 246406272. Its totient is φ = 67468200.

The previous prime is 137869969. The next prime is 137869993. The reversal of 137869988 is 889968731.

137869988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×137869988² = 38016267182240288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366488 + ... + 366863.

It is an arithmetic number, because the mean of its divisors is an integer number (20533856).

Almost surely, 2^137869988 is an apocalyptic number.

It is an amenable number.

137869988 is a deficient number, since it is larger than the sum of its proper divisors (108536284).

137869988 is a wasteful number, since it uses less digits than its factorization.

137869988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733402 (or 733400 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 59.

The square root of 137869988 is about 11741.8051423110. The cubic root of 137869988 is about 516.6025900881.

The spelling of 137869988 in words is "one hundred thirty-seven million, eight hundred sixty-nine thousand, nine hundred eighty-eight".