61112239 has 2 divisors, whose sum is σ = 61112240. Its totient is φ = 61112238.

The previous prime is 61112237. The next prime is 61112243. The reversal of 61112239 is 93221116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61112239 - 2¹ = 61112237 is a prime.

Together with 61112237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61112237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30556119 + 30556120.

It is an arithmetic number, because the mean of its divisors is an integer number (30556120).

Almost surely, 2^61112239 is an apocalyptic number.

61112239 is a deficient number, since it is larger than the sum of its proper divisors (1).

61112239 is an equidigital number, since it uses as much as digits as its factorization.

61112239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 61112239 is about 7817.4317393886. The cubic root of 61112239 is about 393.8910067246.

The spelling of 61112239 in words is "sixty-one million, one hundred twelve thousand, two hundred thirty-nine".