1170225887 has 2 divisors, whose sum is σ = 1170225888. Its totient is φ = 1170225886.

The previous prime is 1170225863. The next prime is 1170225907. The reversal of 1170225887 is 7885220711.

It is a strong prime.

It is an emirp because it is prime and its reverse (7885220711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1170225887 - 2⁸ = 1170225631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1170221887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585112943 + 585112944.

It is an arithmetic number, because the mean of its divisors is an integer number (585112944).

Almost surely, 2^1170225887 is an apocalyptic number.

1170225887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1170225887 is an equidigital number, since it uses as much as digits as its factorization.

1170225887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 41.

The square root of 1170225887 is about 34208.5645270304. The cubic root of 1170225887 is about 1053.7960516323.

The spelling of 1170225887 in words is "one billion, one hundred seventy million, two hundred twenty-five thousand, eight hundred eighty-seven".