137147661 has 20 divisors (see below), whose sum is σ = 234143712. Its totient is φ = 78369768.

The previous prime is 137147629. The next prime is 137147663. The reversal of 137147661 is 166741731.

It is not a de Polignac number, because 137147661 - 2⁵ = 137147629 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137147663) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 120375 + ... + 121508.

Almost surely, 2^137147661 is an apocalyptic number.

It is an amenable number.

137147661 is a deficient number, since it is larger than the sum of its proper divisors (96996051).

137147661 is an equidigital number, since it uses as much as digits as its factorization.

137147661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241902 (or 241893 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 137147661 is about 11711.0059772848. The cubic root of 137147661 is about 515.6988169360.

The spelling of 137147661 in words is "one hundred thirty-seven million, one hundred forty-seven thousand, six hundred sixty-one".