61524132 has 12 divisors (see below), whose sum is σ = 143556336. Its totient is φ = 20508040.

The previous prime is 61524131. The next prime is 61524137. The reversal of 61524132 is 23142516.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61524131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563494 + ... + 2563517.

It is an arithmetic number, because the mean of its divisors is an integer number (11963028).

Almost surely, 2^61524132 is an apocalyptic number.

It is an amenable number.

61524132 is an abundant number, since it is smaller than the sum of its proper divisors (82032204).

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

61524132 is a wasteful number, since it uses less digits than its factorization.

61524132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5127018 (or 5127016 counting only the distinct ones).

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

The square root of 61524132 is about 7843.7320198997. The cubic root of 61524132 is about 394.7739602953.

Adding to 61524132 its reverse (23142516), we get a palindrome (84666648).

The spelling of 61524132 in words is "sixty-one million, five hundred twenty-four thousand, one hundred thirty-two".