45471132 has 144 divisors (see below), whose sum is σ = 140404992. Its totient is φ = 12597120.

The previous prime is 45471119. The next prime is 45471149. The reversal of 45471132 is 23117454.

45471132 is a `hidden beast` number, since 4 + 547 + 113 + 2 = 666.

It is a super-2 number, since 2×45471132² = 4135247690722848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 45471096 and 45471105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278883 + ... + 279045.

Almost surely, 2^45471132 is an apocalyptic number.

45471132 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45471132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70202496).

45471132 is an abundant number, since it is smaller than the sum of its proper divisors (94933860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45471132 is a wasteful number, since it uses less digits than its factorization.

45471132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 216 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 45471132 is about 6743.2286035697. The cubic root of 45471132 is about 356.9263318088.

Adding to 45471132 its reverse (23117454), we get a palindrome (68588586).

The spelling of 45471132 in words is "forty-five million, four hundred seventy-one thousand, one hundred thirty-two".