123165901 has 8 divisors (see below), whose sum is σ = 132249024. Its totient is φ = 114287040.

The previous prime is 123165869. The next prime is 123165949. The reversal of 123165901 is 109561321.

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 123165901 - 2⁵ = 123165869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123165901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123162901) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 49815 + ... + 52228.

It is an arithmetic number, because the mean of its divisors is an integer number (16531128).

Almost surely, 2^123165901 is an apocalyptic number.

It is an amenable number.

123165901 is a deficient number, since it is larger than the sum of its proper divisors (9083123).

123165901 is a wasteful number, since it uses less digits than its factorization.

123165901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102131.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 123165901 is about 11098.0133807813. The cubic root of 123165901 is about 497.5424756037.

The spelling of 123165901 in words is "one hundred twenty-three million, one hundred sixty-five thousand, nine hundred one".