61573079 has 2 divisors, whose sum is σ = 61573080. Its totient is φ = 61573078.

The previous prime is 61573073. The next prime is 61573111. The reversal of 61573079 is 97037516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61573079 - 2⁴ = 61573063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61573073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30786539 + 30786540.

It is an arithmetic number, because the mean of its divisors is an integer number (30786540).

Almost surely, 2^61573079 is an apocalyptic number.

61573079 is a deficient number, since it is larger than the sum of its proper divisors (1).

61573079 is an equidigital number, since it uses as much as digits as its factorization.

61573079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 61573079 is about 7846.8515342142. The cubic root of 61573079 is about 394.8786231779.

It can be divided in two parts, 6157 and 3079, that multiplied together give a triangular number (18957403 = T₆₁₅₇).

The spelling of 61573079 in words is "sixty-one million, five hundred seventy-three thousand, seventy-nine".