45132551 has 4 divisors (see below), whose sum is σ = 45300600. Its totient is φ = 44964504.

The previous prime is 45132533. The next prime is 45132553. The reversal of 45132551 is 15523154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15523154 = 2 ⋅7761577.

It is a cyclic number.

It is not a de Polignac number, because 45132551 - 2⁶ = 45132487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45132551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45132553) 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, 83621 + ... + 84158.

It is an arithmetic number, because the mean of its divisors is an integer number (11325150).

Almost surely, 2^45132551 is an apocalyptic number.

45132551 is a deficient number, since it is larger than the sum of its proper divisors (168049).

45132551 is a wasteful number, since it uses less digits than its factorization.

45132551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168048.

The product of its digits is 3000, while the sum is 26.

The square root of 45132551 is about 6718.0764360046. The cubic root of 45132551 is about 356.0382249701.

The spelling of 45132551 in words is "forty-five million, one hundred thirty-two thousand, five hundred fifty-one".