61142432 has 24 divisors (see below), whose sum is σ = 129634596. Its totient is φ = 28219392.

The previous prime is 61142429. The next prime is 61142449. The reversal of 61142432 is 23424116.

61142432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60777616 + 364816 = 7796^2 + 604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61142398 and 61142407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73073 + ... + 73904.

Almost surely, 2^61142432 is an apocalyptic number.

It is an amenable number.

61142432 is an abundant number, since it is smaller than the sum of its proper divisors (68492164).

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

61142432 is a wasteful number, since it uses less digits than its factorization.

61142432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147000 (or 146992 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 61142432 is about 7819.3626338724. The cubic root of 61142432 is about 393.9558643992.

Adding to 61142432 its reverse (23424116), we get a palindrome (84566548).

The spelling of 61142432 in words is "sixty-one million, one hundred forty-two thousand, four hundred thirty-two".