61745232 has 20 divisors (see below), whose sum is σ = 159508640. Its totient is φ = 20581728.

The previous prime is 61745227. The next prime is 61745251. The reversal of 61745232 is 23254716.

It is a self number, because there is not a number n which added to its sum of digits gives 61745232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643132 + ... + 643227.

It is an arithmetic number, because the mean of its divisors is an integer number (7975432).

Almost surely, 2^61745232 is an apocalyptic number.

It is an amenable number.

61745232 is an abundant number, since it is smaller than the sum of its proper divisors (97763408).

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

61745232 is a wasteful number, since it uses less digits than its factorization.

61745232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286370 (or 1286364 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 61745232 is about 7857.8134363193. The cubic root of 61745232 is about 395.2462962149.

Adding to 61745232 its reverse (23254716), we get a palindrome (84999948).

The spelling of 61745232 in words is "sixty-one million, seven hundred forty-five thousand, two hundred thirty-two".