1168125961 has 4 divisors (see below), whose sum is σ = 1168876800. Its totient is φ = 1167375124.

The previous prime is 1168125949. The next prime is 1168125967. The reversal of 1168125961 is 1695218611.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1695218611 = 23 ⋅73705157.

It is a cyclic number.

It is not a de Polignac number, because 1168125961 - 2¹⁵ = 1168093193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168125967) 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, 373081 + ... + 376198.

It is an arithmetic number, because the mean of its divisors is an integer number (292219200).

Almost surely, 2^1168125961 is an apocalyptic number.

It is an amenable number.

1168125961 is a deficient number, since it is larger than the sum of its proper divisors (750839).

1168125961 is an equidigital number, since it uses as much as digits as its factorization.

1168125961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750838.

The product of its digits is 25920, while the sum is 40.

The square root of 1168125961 is about 34177.8577590814. The cubic root of 1168125961 is about 1053.1653418623.

The spelling of 1168125961 in words is "one billion, one hundred sixty-eight million, one hundred twenty-five thousand, nine hundred sixty-one".