61210132 has 12 divisors (see below), whose sum is σ = 113418900. Its totient is φ = 28804736.

The previous prime is 61210117. The next prime is 61210139. The reversal of 61210132 is 23101216.

It can be written as a sum of positive squares in 2 ways, for example, as 22695696 + 38514436 = 4764^2 + 6206^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61210139) 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, 450007 + ... + 450142.

It is an arithmetic number, because the mean of its divisors is an integer number (9451575).

Almost surely, 2^61210132 is an apocalyptic number.

It is an amenable number.

61210132 is a deficient number, since it is larger than the sum of its proper divisors (52208768).

61210132 is a wasteful number, since it uses less digits than its factorization.

61210132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900170 (or 900168 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 61210132 is about 7823.6904335486. The cubic root of 61210132 is about 394.1012134006.

Adding to 61210132 its reverse (23101216), we get a palindrome (84311348).

The spelling of 61210132 in words is "sixty-one million, two hundred ten thousand, one hundred thirty-two".