1295979479 has 8 divisors (see below), whose sum is σ = 1398105360. Its totient is φ = 1196730496.

The previous prime is 1295979473. The next prime is 1295979481. The reversal of 1295979479 is 9749795921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1295979479 is a prime.

It is a super-2 number, since 2×1295979479² = 3359125619978222882, 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 (1295979473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718289 + ... + 720090.

It is an arithmetic number, because the mean of its divisors is an integer number (174763170).

Almost surely, 2^1295979479 is an apocalyptic number.

1295979479 is a deficient number, since it is larger than the sum of its proper divisors (102125881).

1295979479 is a wasteful number, since it uses less digits than its factorization.

1295979479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438449.

The product of its digits is 12859560, while the sum is 62.

The square root of 1295979479 is about 35999.7149849829. The cubic root of 1295979479 is about 1090.2666011733.

The spelling of 1295979479 in words is "one billion, two hundred ninety-five million, nine hundred seventy-nine thousand, four hundred seventy-nine".