1297779053 has 8 divisors (see below), whose sum is σ = 1303248960. Its totient is φ = 1292318080.

The previous prime is 1297779047. The next prime is 1297779073. The reversal of 1297779053 is 3509777921.

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

It is a cyclic number.

It is not a de Polignac number, because 1297779053 - 2⁴ = 1297779037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1297778992 and 1297779010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297779073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526538 + ... + 528996.

It is an arithmetic number, because the mean of its divisors is an integer number (162906120).

Almost surely, 2^1297779053 is an apocalyptic number.

It is an amenable number.

1297779053 is a deficient number, since it is larger than the sum of its proper divisors (5469907).

1297779053 is a wasteful number, since it uses less digits than its factorization.

1297779053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467.

The product of its (nonzero) digits is 833490, while the sum is 50.

The square root of 1297779053 is about 36024.7005955636. The cubic root of 1297779053 is about 1090.7710093630.

The spelling of 1297779053 in words is "one billion, two hundred ninety-seven million, seven hundred seventy-nine thousand, fifty-three".