45856123 has 4 divisors (see below), whose sum is σ = 48553560. Its totient is φ = 43158688.

The previous prime is 45856087. The next prime is 45856141. The reversal of 45856123 is 32165854.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45856123 - 2⁹ = 45855611 is a prime.

It is a super-2 number, since 2×45856123² = 4205568033182258, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45856193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348693 + ... + 1348726.

It is an arithmetic number, because the mean of its divisors is an integer number (12138390).

Almost surely, 2^45856123 is an apocalyptic number.

45856123 is a deficient number, since it is larger than the sum of its proper divisors (2697437).

45856123 is a wasteful number, since it uses less digits than its factorization.

45856123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697436.

The product of its digits is 28800, while the sum is 34.

The square root of 45856123 is about 6771.7149231195. The cubic root of 45856123 is about 357.9308330531.

The spelling of 45856123 in words is "forty-five million, eight hundred fifty-six thousand, one hundred twenty-three".