45520123 has 8 divisors (see below), whose sum is σ = 49800960. Its totient is φ = 41263080.

The previous prime is 45520117. The next prime is 45520147. The reversal of 45520123 is 32102554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45520123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45520094 and 45520103.

It is not an unprimeable number, because it can be changed into a prime (45520103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815 + ... + 9712.

It is an arithmetic number, because the mean of its divisors is an integer number (6225120).

Almost surely, 2^45520123 is an apocalyptic number.

45520123 is a deficient number, since it is larger than the sum of its proper divisors (4280837).

45520123 is a wasteful number, since it uses less digits than its factorization.

45520123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11897.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 45520123 is about 6746.8602327305. The cubic root of 45520123 is about 357.0544709965.

Adding to 45520123 its reverse (32102554), we get a palindrome (77622677).

Subtracting from 45520123 its reverse (32102554), we obtain a square (13417569 = 3663²).

The spelling of 45520123 in words is "forty-five million, five hundred twenty thousand, one hundred twenty-three".