45194523 has 8 divisors (see below), whose sum is σ = 65737536. Its totient is φ = 27390600.

The previous prime is 45194509. The next prime is 45194533. The reversal of 45194523 is 32549154.

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

It is not a de Polignac number, because 45194523 - 2⁴ = 45194507 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1369531 = 45194523 / (4 + 5 + 1 + 9 + 4 + 5 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (45194503) 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, 684733 + ... + 684798.

It is an arithmetic number, because the mean of its divisors is an integer number (8217192).

Almost surely, 2^45194523 is an apocalyptic number.

45194523 is a deficient number, since it is larger than the sum of its proper divisors (20543013).

45194523 is a wasteful number, since it uses less digits than its factorization.

45194523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369545.

The product of its digits is 21600, while the sum is 33.

The square root of 45194523 is about 6722.6871859399. The cubic root of 45194523 is about 356.2011104347.

The spelling of 45194523 in words is "forty-five million, one hundred ninety-four thousand, five hundred twenty-three".