61142532 has 48 divisors (see below), whose sum is σ = 163833600. Its totient is φ = 17552160.

The previous prime is 61142519. The next prime is 61142561. The reversal of 61142532 is 23524116.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9682 + ... + 14697.

It is an arithmetic number, because the mean of its divisors is an integer number (3413200).

Almost surely, 2^61142532 is an apocalyptic number.

It is an amenable number.

61142532 is an abundant number, since it is smaller than the sum of its proper divisors (102691068).

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

61142532 is a wasteful number, since it uses less digits than its factorization.

61142532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24416 (or 24414 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 61142532 is about 7819.3690282529. The cubic root of 61142532 is about 393.9560791740.

Adding to 61142532 its reverse (23524116), we get a palindrome (84666648).

It can be divided in two parts, 6114 and 2532, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 61142532 in words is "sixty-one million, one hundred forty-two thousand, five hundred thirty-two".