45132451 has 16 divisors (see below), whose sum is σ = 56131264. Its totient is φ = 35334144.

The previous prime is 45132443. The next prime is 45132481. The reversal of 45132451 is 15423154.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45132451 - 2³ = 45132443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45132401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6271 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (3508204).

Almost surely, 2^45132451 is an apocalyptic number.

45132451 is a deficient number, since it is larger than the sum of its proper divisors (10998813).

45132451 is a wasteful number, since it uses less digits than its factorization.

45132451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5230.

The product of its digits is 2400, while the sum is 25.

The square root of 45132451 is about 6718.0689933939. The cubic root of 45132451 is about 356.0379620125.

It can be divided in two parts, 45 and 132451, that added together give a square (132496 = 364²).

The spelling of 45132451 in words is "forty-five million, one hundred thirty-two thousand, four hundred fifty-one".