122579147 has 2 divisors, whose sum is σ = 122579148. Its totient is φ = 122579146.

The previous prime is 122579087. The next prime is 122579153. The reversal of 122579147 is 741975221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122579147 - 2¹² = 122575051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122579147.

It is not a weakly prime, because it can be changed into another prime (122579047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61289573 + 61289574.

It is an arithmetic number, because the mean of its divisors is an integer number (61289574).

Almost surely, 2^122579147 is an apocalyptic number.

122579147 is a deficient number, since it is larger than the sum of its proper divisors (1).

122579147 is an equidigital number, since it uses as much as digits as its factorization.

122579147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The square root of 122579147 is about 11071.5467302451. The cubic root of 122579147 is about 496.7511314291.

The spelling of 122579147 in words is "one hundred twenty-two million, five hundred seventy-nine thousand, one hundred forty-seven".