1211090975 has 12 divisors (see below), whose sum is σ = 1503531744. Its totient is φ = 967725120.

The previous prime is 1211090963. The next prime is 1211090983. The reversal of 1211090975 is 5790901121.

It is not a de Polignac number, because 1211090975 - 2⁶ = 1211090911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6839 + ... + 49688.

It is an arithmetic number, because the mean of its divisors is an integer number (125294312).

Almost surely, 2^1211090975 is an apocalyptic number.

1211090975 is a deficient number, since it is larger than the sum of its proper divisors (292440769).

1211090975 is an equidigital number, since it uses as much as digits as its factorization.

1211090975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57394 (or 57389 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 1211090975 is about 34800.7323917184. The cubic root of 1211090975 is about 1065.9224010033.

The spelling of 1211090975 in words is "one billion, two hundred eleven million, ninety thousand, nine hundred seventy-five".