1025164079 has 4 divisors (see below), whose sum is σ = 1058233920. Its totient is φ = 992094240.

The previous prime is 1025164067. The next prime is 1025164081. The reversal of 1025164079 is 9704615201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9704615201 = 67 ⋅144845003.

It is a de Polignac number, because none of the positive numbers 2^k-1025164079 is a prime.

It is a super-2 number, since 2×1025164079² = 2101922777743836482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025164279) 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 in 3 ways as a sum of consecutive naturals, for example, 16534874 + ... + 16534935.

It is an arithmetic number, because the mean of its divisors is an integer number (264558480).

Almost surely, 2^1025164079 is an apocalyptic number.

1025164079 is a deficient number, since it is larger than the sum of its proper divisors (33069841).

1025164079 is an equidigital number, since it uses as much as digits as its factorization.

1025164079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33069840.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1025164079 is about 32018.1835680914. The cubic root of 1025164079 is about 1008.3186347667.

The spelling of 1025164079 in words is "one billion, twenty-five million, one hundred sixty-four thousand, seventy-nine".