1012975897 has 8 divisors (see below), whose sum is σ = 1054104480. Its totient is φ = 972646080.

The previous prime is 1012975891. The next prime is 1012975903. The reversal of 1012975897 is 7985792101.

It is an interprime number because it is at equal distance from previous prime (1012975891) and next prime (1012975903).

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-1012975897 is a prime.

It is a super-2 number, since 2×1012975897² = 2052240335805909218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012975897.

It is not an unprimeable number, because it can be changed into a prime (1012975891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197104 + ... + 202177.

It is an arithmetic number, because the mean of its divisors is an integer number (131763060).

Almost surely, 2^1012975897 is an apocalyptic number.

It is an amenable number.

1012975897 is a deficient number, since it is larger than the sum of its proper divisors (41128583).

1012975897 is an equidigital number, since it uses as much as digits as its factorization.

1012975897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399383.

The product of its (nonzero) digits is 317520, while the sum is 49.

The square root of 1012975897 is about 31827.2822748032. The cubic root of 1012975897 is about 1004.3067244972.

The spelling of 1012975897 in words is "one billion, twelve million, nine hundred seventy-five thousand, eight hundred ninety-seven".