1022311897 has 4 divisors (see below), whose sum is σ = 1025097856. Its totient is φ = 1019525940.

The previous prime is 1022311883. The next prime is 1022311907. The reversal of 1022311897 is 7981132201.

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 a de Polignac number, because none of the positive numbers 2^k-1022311897 is a prime.

It is a super-2 number, since 2×1022311897² = 2090243229495477218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022311877) 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, 1392429 + ... + 1393162.

It is an arithmetic number, because the mean of its divisors is an integer number (256274464).

Almost surely, 2^1022311897 is an apocalyptic number.

It is an amenable number.

1022311897 is a deficient number, since it is larger than the sum of its proper divisors (2785959).

1022311897 is an equidigital number, since it uses as much as digits as its factorization.

1022311897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785958.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1022311897 is about 31973.6125109441. The cubic root of 1022311897 is about 1007.3826611864.

The spelling of 1022311897 in words is "one billion, twenty-two million, three hundred eleven thousand, eight hundred ninety-seven".