137631069 has 24 divisors (see below), whose sum is σ = 208324480. Its totient is φ = 90792576.

The previous prime is 137631059. The next prime is 137631077. The reversal of 137631069 is 960136731.

137631069 is a `hidden beast` number, since 13 + 7 + 631 + 0 + 6 + 9 = 666.

It is not a de Polignac number, because 137631069 - 2¹⁷ = 137499997 is a prime.

It is a super-2 number, since 2×137631069² = 37884622308165522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137631019) 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, 20652 + ... + 26490.

Almost surely, 2^137631069 is an apocalyptic number.

It is an amenable number.

137631069 is a deficient number, since it is larger than the sum of its proper divisors (70693411).

137631069 is an frugal number, since it uses more digits than its factorization.

137631069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5951 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 137631069 is about 11731.6268692795. The cubic root of 137631069 is about 516.3040055519.

The spelling of 137631069 in words is "one hundred thirty-seven million, six hundred thirty-one thousand, sixty-nine".