137665163 has 8 divisors (see below), whose sum is σ = 140145600. Its totient is φ = 135203328.

The previous prime is 137665109. The next prime is 137665207. The reversal of 137665163 is 361566731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137665163 - 2²⁰ = 136616587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137665063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10733 + ... + 19761.

It is an arithmetic number, because the mean of its divisors is an integer number (17518200).

Almost surely, 2^137665163 is an apocalyptic number.

137665163 is a deficient number, since it is larger than the sum of its proper divisors (2480437).

137665163 is an equidigital number, since it uses as much as digits as its factorization.

137665163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9301.

The product of its digits is 68040, while the sum is 38.

The square root of 137665163 is about 11733.0798599515. The cubic root of 137665163 is about 516.3466350143.

The spelling of 137665163 in words is "one hundred thirty-seven million, six hundred sixty-five thousand, one hundred sixty-three".