45245423 has 4 divisors (see below), whose sum is σ = 46805640. Its totient is φ = 43685208.

The previous prime is 45245419. The next prime is 45245429. The reversal of 45245423 is 32454254.

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 45245423 - 2² = 45245419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 1560187 = 45245423 / (4 + 5 + 2 + 4 + 5 + 4 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45245429) 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, 780065 + ... + 780122.

It is an arithmetic number, because the mean of its divisors is an integer number (11701410).

Almost surely, 2^45245423 is an apocalyptic number.

45245423 is a deficient number, since it is larger than the sum of its proper divisors (1560217).

45245423 is a wasteful number, since it uses less digits than its factorization.

45245423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560216.

The product of its digits is 19200, while the sum is 29.

The square root of 45245423 is about 6726.4718092028. The cubic root of 45245423 is about 356.3347832272.

Adding to 45245423 its reverse (32454254), we get a palindrome (77699677).

The spelling of 45245423 in words is "forty-five million, two hundred forty-five thousand, four hundred twenty-three".