1166259125 has 16 divisors (see below), whose sum is σ = 1468861680. Its totient is φ = 924436800.

The previous prime is 1166259119. The next prime is 1166259173. The reversal of 1166259125 is 5219526611.

It can be written as a sum of positive squares in 8 ways, for example, as 642673201 + 523585924 = 25351^2 + 22882^2 .

It is not a de Polignac number, because 1166259125 - 2⁸ = 1166258869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29174 + ... + 56423.

It is an arithmetic number, because the mean of its divisors is an integer number (91803855).

Almost surely, 2^1166259125 is an apocalyptic number.

It is an amenable number.

1166259125 is a deficient number, since it is larger than the sum of its proper divisors (302602555).

1166259125 is an equidigital number, since it uses as much as digits as its factorization.

1166259125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85721 (or 85711 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 1166259125 is about 34150.5362329788. The cubic root of 1166259125 is about 1052.6040053468.

The spelling of 1166259125 in words is "one billion, one hundred sixty-six million, two hundred fifty-nine thousand, one hundred twenty-five".