123927165 has 40 divisors (see below), whose sum is σ = 223680600. Its totient is φ = 65639808.

The previous prime is 123927157. The next prime is 123927169. The reversal of 123927165 is 561729321.

It can be written as a sum of positive squares in 4 ways, for example, as 16990884 + 106936281 = 4122^2 + 10341^2 .

It is not a de Polignac number, because 123927165 - 2³ = 123927157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123927169) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 62611 + ... + 64559.

It is an arithmetic number, because the mean of its divisors is an integer number (5592015).

Almost surely, 2^123927165 is an apocalyptic number.

123927165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123927165 is a deficient number, since it is larger than the sum of its proper divisors (99753435).

123927165 is a wasteful number, since it uses less digits than its factorization.

123927165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123 (or 2114 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 123927165 is about 11132.2578572363. The cubic root of 123927165 is about 498.5654413527.

The spelling of 123927165 in words is "one hundred twenty-three million, nine hundred twenty-seven thousand, one hundred sixty-five".