1020653297 has 4 divisors (see below), whose sum is σ = 1022131056. Its totient is φ = 1019175540.

The previous prime is 1020653279. The next prime is 1020653299. The reversal of 1020653297 is 7923560201.

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 1020653297 - 2⁶ = 1020653233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020653299) 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, 737843 + ... + 739224.

It is an arithmetic number, because the mean of its divisors is an integer number (255532764).

Almost surely, 2^1020653297 is an apocalyptic number.

It is an amenable number.

1020653297 is a deficient number, since it is larger than the sum of its proper divisors (1477759).

1020653297 is an equidigital number, since it uses as much as digits as its factorization.

1020653297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477758.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1020653297 is about 31947.6649694465. The cubic root of 1020653297 is about 1006.8375733661.

The spelling of 1020653297 in words is "one billion, twenty million, six hundred fifty-three thousand, two hundred ninety-seven".