654621132 has 36 divisors (see below), whose sum is σ = 1678935608. Its totient is φ = 198369600.

The previous prime is 654621103. The next prime is 654621133. The reversal of 654621132 is 231126456.

It is a super-2 number, since 2×654621132² = 857057652921922848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 654621132.

It is not an unprimeable number, because it can be changed into a prime (654621133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223969 + ... + 226872.

Almost surely, 2^654621132 is an apocalyptic number.

It is an amenable number.

654621132 is an abundant number, since it is smaller than the sum of its proper divisors (1024314476).

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

654621132 is a wasteful number, since it uses less digits than its factorization.

654621132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450870 (or 450857 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 654621132 is about 25585.5649146154. The cubic root of 654621132 is about 868.2870828659.

Adding to 654621132 its reverse (231126456), we get a palindrome (885747588).

The spelling of 654621132 in words is "six hundred fifty-four million, six hundred twenty-one thousand, one hundred thirty-two".