137173663 has 16 divisors (see below), whose sum is σ = 158817024. Its totient is φ = 117093760.

The previous prime is 137173657. The next prime is 137173669. The reversal of 137173663 is 366371731.

137173663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (137173657) and next prime (137173669).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137173663 is a prime.

It is a super-2 number, since 2×137173663² = 37633227641675138, 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 (137173669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154206 + ... + 155092.

It is an arithmetic number, because the mean of its divisors is an integer number (9926064).

Almost surely, 2^137173663 is an apocalyptic number.

137173663 is a deficient number, since it is larger than the sum of its proper divisors (21643361).

137173663 is a wasteful number, since it uses less digits than its factorization.

137173663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742.

The product of its digits is 47628, while the sum is 37.

The square root of 137173663 is about 11712.1160769521. The cubic root of 137173663 is about 515.7314055421.

The spelling of 137173663 in words is "one hundred thirty-seven million, one hundred seventy-three thousand, six hundred sixty-three".