61442079 has 8 divisors (see below), whose sum is σ = 82376112. Its totient is φ = 40734720.

The previous prime is 61442053. The next prime is 61442081. The reversal of 61442079 is 97024416.

It is a happy number.

61442079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-61442079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61442099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56034 + ... + 57119.

It is an arithmetic number, because the mean of its divisors is an integer number (10297014).

Almost surely, 2^61442079 is an apocalyptic number.

61442079 is a deficient number, since it is larger than the sum of its proper divisors (20934033).

61442079 is a wasteful number, since it uses less digits than its factorization.

61442079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113337.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 61442079 is about 7838.4997926899. The cubic root of 61442079 is about 394.5983825848.

The spelling of 61442079 in words is "sixty-one million, four hundred forty-two thousand, seventy-nine".