1161983527 has 4 divisors (see below), whose sum is σ = 1163665816. Its totient is φ = 1160301240.

The previous prime is 1161983519. The next prime is 1161983531. The reversal of 1161983527 is 7253891611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1161983527 - 2³ = 1161983519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161983227) 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, 840108 + ... + 841489.

It is an arithmetic number, because the mean of its divisors is an integer number (290916454).

Almost surely, 2^1161983527 is an apocalyptic number.

1161983527 is a deficient number, since it is larger than the sum of its proper divisors (1682289).

1161983527 is an equidigital number, since it uses as much as digits as its factorization.

1161983527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682288.

The product of its digits is 90720, while the sum is 43.

The square root of 1161983527 is about 34087.8794735020. The cubic root of 1161983527 is about 1051.3161204460.

The spelling of 1161983527 in words is "one billion, one hundred sixty-one million, nine hundred eighty-three thousand, five hundred twenty-seven".