45190623 has 8 divisors (see below), whose sum is σ = 60489648. Its totient is φ = 30009344.

The previous prime is 45190619. The next prime is 45190667. The reversal of 45190623 is 32609154.

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

It is a cyclic number.

It is not a de Polignac number, because 45190623 - 2² = 45190619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45190693) 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, 28536 + ... + 30077.

It is an arithmetic number, because the mean of its divisors is an integer number (7561206).

Almost surely, 2^45190623 is an apocalyptic number.

45190623 is a deficient number, since it is larger than the sum of its proper divisors (15299025).

45190623 is a wasteful number, since it uses less digits than its factorization.

45190623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58873.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 45190623 is about 6722.3971171004. The cubic root of 45190623 is about 356.1908641763.

Adding to 45190623 its reverse (32609154), we get a palindrome (77799777).

The spelling of 45190623 in words is "forty-five million, one hundred ninety thousand, six hundred twenty-three".