1161512575 has 12 divisors (see below), whose sum is σ = 1475405568. Its totient is φ = 906545600.

The previous prime is 1161512509. The next prime is 1161512587. The reversal of 1161512575 is 5752151611.

It is not a de Polignac number, because 1161512575 - 2¹⁹ = 1160988287 is a prime.

It is a super-2 number, since 2×1161512575² = 2698222923766261250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161512575.

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, 565567 + ... + 567616.

It is an arithmetic number, because the mean of its divisors is an integer number (122950464).

Almost surely, 2^1161512575 is an apocalyptic number.

1161512575 is a deficient number, since it is larger than the sum of its proper divisors (313892993).

1161512575 is a wasteful number, since it uses less digits than its factorization.

1161512575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133234 (or 1133229 counting only the distinct ones).

The product of its digits is 10500, while the sum is 34.

The square root of 1161512575 is about 34080.9708635185. The cubic root of 1161512575 is about 1051.1740684221.

The spelling of 1161512575 in words is "one billion, one hundred sixty-one million, five hundred twelve thousand, five hundred seventy-five".