45173501 has 4 divisors (see below), whose sum is σ = 45304032. Its totient is φ = 45042972.

The previous prime is 45173483. The next prime is 45173509. The reversal of 45173501 is 10537154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10537154 = 2 ⋅5268577.

It is a cyclic number.

It is not a de Polignac number, because 45173501 - 2¹⁸ = 44911357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45173509) 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, 64745 + ... + 65438.

It is an arithmetic number, because the mean of its divisors is an integer number (11326008).

Almost surely, 2^45173501 is an apocalyptic number.

It is an amenable number.

45173501 is a deficient number, since it is larger than the sum of its proper divisors (130531).

45173501 is a wasteful number, since it uses less digits than its factorization.

45173501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130530.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 45173501 is about 6721.1234923932. The cubic root of 45173501 is about 356.1458734978.

The spelling of 45173501 in words is "forty-five million, one hundred seventy-three thousand, five hundred one".