61133152 has 24 divisors (see below), whose sum is σ = 121811256. Its totient is φ = 30196992.

The previous prime is 61133129. The next prime is 61133167. The reversal of 61133152 is 25133116.

It is a happy number.

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, 8853 + ... + 14164.

It is an arithmetic number, because the mean of its divisors is an integer number (5075469).

Almost surely, 2^61133152 is an apocalyptic number.

It is an amenable number.

61133152 is a deficient number, since it is larger than the sum of its proper divisors (60678104).

61133152 is a wasteful number, since it uses less digits than its factorization.

61133152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23110 (or 23102 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 61133152 is about 7818.7692126063. The cubic root of 61133152 is about 393.9359322763.

Adding to 61133152 its reverse (25133116), we get a palindrome (86266268).

The spelling of 61133152 in words is "sixty-one million, one hundred thirty-three thousand, one hundred fifty-two".