1162265887 has 2 divisors, whose sum is σ = 1162265888. Its totient is φ = 1162265886.

The previous prime is 1162265873. The next prime is 1162265893. The reversal of 1162265887 is 7885622611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1162265887 - 2⁷ = 1162265759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1162265807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581132943 + 581132944.

It is an arithmetic number, because the mean of its divisors is an integer number (581132944).

Almost surely, 2^1162265887 is an apocalyptic number.

1162265887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162265887 is an equidigital number, since it uses as much as digits as its factorization.

1162265887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 46.

The square root of 1162265887 is about 34092.0208699924. The cubic root of 1162265887 is about 1051.4012695528.

The spelling of 1162265887 in words is "one billion, one hundred sixty-two million, two hundred sixty-five thousand, eight hundred eighty-seven".