61126979 has 2 divisors, whose sum is σ = 61126980. Its totient is φ = 61126978.

The previous prime is 61126973. The next prime is 61126987. The reversal of 61126979 is 97962116.

61126979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61126979 - 2⁴ = 61126963 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61126973) 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 as a sum of consecutive naturals, namely, 30563489 + 30563490.

It is an arithmetic number, because the mean of its divisors is an integer number (30563490).

Almost surely, 2^61126979 is an apocalyptic number.

61126979 is a deficient number, since it is larger than the sum of its proper divisors (1).

61126979 is an equidigital number, since it uses as much as digits as its factorization.

61126979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 61126979 is about 7818.3744474155. The cubic root of 61126979 is about 393.9226724313.

The spelling of 61126979 in words is "sixty-one million, one hundred twenty-six thousand, nine hundred seventy-nine".