123290160 has 80 divisors (see below), whose sum is σ = 436805376. Its totient is φ = 28180224.

The previous prime is 123290147. The next prime is 123290161. The reversal of 123290160 is 61092321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 123290160.

It is not an unprimeable number, because it can be changed into a prime (123290161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35014 + ... + 38373.

Almost surely, 2^123290160 is an apocalyptic number.

123290160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123290160 is an abundant number, since it is smaller than the sum of its proper divisors (313515216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123290160 is a wasteful number, since it uses less digits than its factorization.

123290160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73410 (or 73404 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 123290160 is about 11103.6102237065. The cubic root of 123290160 is about 497.7097387577.

The spelling of 123290160 in words is "one hundred twenty-three million, two hundred ninety thousand, one hundred sixty".