45245023 has 4 divisors (see below), whose sum is σ = 47626360. Its totient is φ = 42863688.

The previous prime is 45245021. The next prime is 45245029. The reversal of 45245023 is 32054254.

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 45245023 - 2¹ = 45245021 is a prime.

It is a super-2 number, since 2×45245023² = 4094224212541058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45245021) 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, 1190640 + ... + 1190677.

It is an arithmetic number, because the mean of its divisors is an integer number (11906590).

Almost surely, 2^45245023 is an apocalyptic number.

45245023 is a deficient number, since it is larger than the sum of its proper divisors (2381337).

45245023 is a wasteful number, since it uses less digits than its factorization.

45245023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381336.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45245023 is about 6726.4420758674. The cubic root of 45245023 is about 356.3337331443. Note that the first 3 decimals are identical.

Adding to 45245023 its reverse (32054254), we get a palindrome (77299277).

The spelling of 45245023 in words is "forty-five million, two hundred forty-five thousand, twenty-three".