1297158653 has 4 divisors (see below), whose sum is σ = 1482467040. Its totient is φ = 1111850268.

The previous prime is 1297158647. The next prime is 1297158739. The reversal of 1297158653 is 3568517921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1297158653 - 2⁶ = 1297158589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1297158598 and 1297158607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297158613) 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, 92654183 + ... + 92654196.

It is an arithmetic number, because the mean of its divisors is an integer number (370616760).

Almost surely, 2^1297158653 is an apocalyptic number.

It is an amenable number.

1297158653 is a deficient number, since it is larger than the sum of its proper divisors (185308387).

1297158653 is an equidigital number, since it uses as much as digits as its factorization.

1297158653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185308386.

The product of its digits is 453600, while the sum is 47.

The square root of 1297158653 is about 36016.0888076426. The cubic root of 1297158653 is about 1090.5971682161.

The spelling of 1297158653 in words is "one billion, two hundred ninety-seven million, one hundred fifty-eight thousand, six hundred fifty-three".