123166355 has 12 divisors (see below), whose sum is σ = 160044480. Its totient is φ = 90952992.

The previous prime is 123166339. The next prime is 123166361. The reversal of 123166355 is 553661321.

It is not a de Polignac number, because 123166355 - 2⁴ = 123166339 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72035 + ... + 73724.

It is an arithmetic number, because the mean of its divisors is an integer number (13337040).

Almost surely, 2^123166355 is an apocalyptic number.

123166355 is a deficient number, since it is larger than the sum of its proper divisors (36878125).

123166355 is a wasteful number, since it uses less digits than its factorization.

123166355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145790 (or 145777 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 123166355 is about 11098.0338348736. The cubic root of 123166355 is about 497.5430869310.

The spelling of 123166355 in words is "one hundred twenty-three million, one hundred sixty-six thousand, three hundred fifty-five".