61191132 has 24 divisors (see below), whose sum is σ = 148987776. Its totient is φ = 19510128.

The previous prime is 61191121. The next prime is 61191139. The reversal of 61191132 is 23119116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61191139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110578 + ... + 111129.

It is an arithmetic number, because the mean of its divisors is an integer number (6207824).

Almost surely, 2^61191132 is an apocalyptic number.

It is an amenable number.

61191132 is an abundant number, since it is smaller than the sum of its proper divisors (87796644).

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

61191132 is a wasteful number, since it uses less digits than its factorization.

61191132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221737 (or 221735 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 61191132 is about 7822.4760785828. The cubic root of 61191132 is about 394.0604320370.

The spelling of 61191132 in words is "sixty-one million, one hundred ninety-one thousand, one hundred thirty-two".