61320132 has 24 divisors (see below), whose sum is σ = 158978400. Its totient is φ = 20440008.

The previous prime is 61320131. The next prime is 61320167. The reversal of 61320132 is 23102316.

61320132 is a `hidden beast` number, since 613 + 20 + 1 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (61320131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283782 + ... + 283997.

It is an arithmetic number, because the mean of its divisors is an integer number (6624100).

Almost surely, 2^61320132 is an apocalyptic number.

It is an amenable number.

61320132 is an abundant number, since it is smaller than the sum of its proper divisors (97658268).

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

61320132 is a wasteful number, since it uses less digits than its factorization.

61320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567792 (or 567784 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 61320132 is about 7830.7172085321. The cubic root of 61320132 is about 394.3371503245.

Adding to 61320132 its reverse (23102316), we get a palindrome (84422448).

The spelling of 61320132 in words is "sixty-one million, three hundred twenty thousand, one hundred thirty-two".