45451132 has 24 divisors (see below), whose sum is σ = 85243536. Its totient is φ = 21128448.

The previous prime is 45451127. The next prime is 45451163. The reversal of 45451132 is 23115454.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 45451097 and 45451106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618 + ... + 9670.

It is an arithmetic number, because the mean of its divisors is an integer number (3551814).

Almost surely, 2^45451132 is an apocalyptic number.

It is an amenable number.

45451132 is a deficient number, since it is larger than the sum of its proper divisors (39792404).

45451132 is a wasteful number, since it uses less digits than its factorization.

45451132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157 (or 8155 counting only the distinct ones).

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

The square root of 45451132 is about 6741.7454713153. The cubic root of 45451132 is about 356.8739940347.

Adding to 45451132 its reverse (23115454), we get a palindrome (68566586).

The spelling of 45451132 in words is "forty-five million, four hundred fifty-one thousand, one hundred thirty-two".