1042125079 has 2 divisors, whose sum is σ = 1042125080. Its totient is φ = 1042125078.

The previous prime is 1042125013. The next prime is 1042125089. The reversal of 1042125079 is 9705212401.

It is a strong prime.

It is an emirp because it is prime and its reverse (9705212401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042125079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1042125079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042125089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521062539 + 521062540.

It is an arithmetic number, because the mean of its divisors is an integer number (521062540).

Almost surely, 2^1042125079 is an apocalyptic number.

1042125079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042125079 is an equidigital number, since it uses as much as digits as its factorization.

1042125079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1042125079 is about 32281.9621305769. The cubic root of 1042125079 is about 1013.8490124627.

The spelling of 1042125079 in words is "one billion, forty-two million, one hundred twenty-five thousand, seventy-nine".