61132775 has 48 divisors (see below), whose sum is σ = 87422976. Its totient is φ = 42000000.

The previous prime is 61132741. The next prime is 61132777. The reversal of 61132775 is 57723116.

It is not a de Polignac number, because 61132775 - 2⁶ = 61132711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61132777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 605225 + ... + 605325.

It is an arithmetic number, because the mean of its divisors is an integer number (1821312).

Almost surely, 2^61132775 is an apocalyptic number.

61132775 is a deficient number, since it is larger than the sum of its proper divisors (26290201).

61132775 is a wasteful number, since it uses less digits than its factorization.

61132775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 219 counting only the distinct ones).

The product of its digits is 8820, while the sum is 32.

The square root of 61132775 is about 7818.7451039153. The cubic root of 61132775 is about 393.9351224912.

It can be divided in two parts, 6113 and 2775, that added together give a palindrome (8888).

The spelling of 61132775 in words is "sixty-one million, one hundred thirty-two thousand, seven hundred seventy-five".