45201123 has 18 divisors (see below), whose sum is σ = 71767332. Its totient is φ = 27393960.

The previous prime is 45201097. The next prime is 45201173. The reversal of 45201123 is 32110254.

It is not a de Polignac number, because 45201123 - 2¹⁴ = 45184739 is a prime.

It is a super-2 number, since 2×45201123² = 4086283040922258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45201096 and 45201105.

It is not an unprimeable number, because it can be changed into a prime (45201173) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19665 + ... + 21842.

It is an arithmetic number, because the mean of its divisors is an integer number (3987074).

Almost surely, 2^45201123 is an apocalyptic number.

45201123 is a deficient number, since it is larger than the sum of its proper divisors (26566209).

45201123 is a wasteful number, since it uses less digits than its factorization.

45201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41535 (or 41521 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 45201123 is about 6723.1780431579. The cubic root of 45201123 is about 356.2184489140.

Adding to 45201123 its reverse (32110254), we get a palindrome (77311377).

The spelling of 45201123 in words is "forty-five million, two hundred one thousand, one hundred twenty-three".