61112290 has 8 divisors (see below), whose sum is σ = 110002140. Its totient is φ = 24444912.

The previous prime is 61112243. The next prime is 61112291. The reversal of 61112290 is 9221116.

It can be written as a sum of positive squares in 2 ways, for example, as 60078001 + 1034289 = 7751^2 + 1017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61112291) 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, 3055605 + ... + 3055624.

Almost surely, 2^61112290 is an apocalyptic number.

61112290 is a deficient number, since it is larger than the sum of its proper divisors (48889850).

61112290 is a wasteful number, since it uses less digits than its factorization.

61112290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111236.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 61112290 is about 7817.4350013288. The cubic root of 61112290 is about 393.8911162958.

The spelling of 61112290 in words is "sixty-one million, one hundred twelve thousand, two hundred ninety".