61109292 has 12 divisors (see below), whose sum is σ = 142588376. Its totient is φ = 20369760.

The previous prime is 61109291. The next prime is 61109303. The reversal of 61109292 is 29290116.

It is a happy number.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61109291) 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, 2546209 + ... + 2546232.

Almost surely, 2^61109292 is an apocalyptic number.

It is an amenable number.

61109292 is an abundant number, since it is smaller than the sum of its proper divisors (81479084).

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

61109292 is a wasteful number, since it uses less digits than its factorization.

61109292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092448 (or 5092446 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 61109292 is about 7817.2432481022. The cubic root of 61109292 is about 393.8846751208.

The spelling of 61109292 in words is "sixty-one million, one hundred nine thousand, two hundred ninety-two".