61279242 has 8 divisors (see below), whose sum is σ = 122558496. Its totient is φ = 20426412.

The previous prime is 61279241. The next prime is 61279247. The reversal of 61279242 is 24297216.

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

61279242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (61279241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106598 + ... + 5106609.

It is an arithmetic number, because the mean of its divisors is an integer number (15319812).

Almost surely, 2^61279242 is an apocalyptic number.

61279242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61279242 is a wasteful number, since it uses less digits than its factorization.

61279242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10213212.

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

The square root of 61279242 is about 7828.1059011743. The cubic root of 61279242 is about 394.2494791092.

The spelling of 61279242 in words is "sixty-one million, two hundred seventy-nine thousand, two hundred forty-two".