1020264079 has 4 divisors (see below), whose sum is σ = 1020910176. Its totient is φ = 1019617984.

The previous prime is 1020264067. The next prime is 1020264083. The reversal of 1020264079 is 9704620201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9704620201 = 21179 ⋅458219.

It is a cyclic number.

It is not a de Polignac number, because 1020264079 - 2²³ = 1011875471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020264079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020268079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320674 + ... + 323839.

It is an arithmetic number, because the mean of its divisors is an integer number (255227544).

Almost surely, 2^1020264079 is an apocalyptic number.

1020264079 is a deficient number, since it is larger than the sum of its proper divisors (646097).

1020264079 is an equidigital number, since it uses as much as digits as its factorization.

1020264079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646096.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1020264079 is about 31941.5728948967. The cubic root of 1020264079 is about 1006.7095739329.

The spelling of 1020264079 in words is "one billion, twenty million, two hundred sixty-four thousand, seventy-nine".