1163524987 has 4 divisors (see below), whose sum is σ = 1165563256. Its totient is φ = 1161486720.

The previous prime is 1163524981. The next prime is 1163524993. The reversal of 1163524987 is 7894253611.

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

It is an interprime number because it is at equal distance from previous prime (1163524981) and next prime (1163524993).

It is a cyclic number.

It is not a de Polignac number, because 1163524987 - 2²⁷ = 1029307259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163524981) 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, 1018278 + ... + 1019419.

It is an arithmetic number, because the mean of its divisors is an integer number (291390814).

Almost surely, 2^1163524987 is an apocalyptic number.

1163524987 is a deficient number, since it is larger than the sum of its proper divisors (2038269).

1163524987 is an equidigital number, since it uses as much as digits as its factorization.

1163524987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038268.

The product of its digits is 362880, while the sum is 46.

The square root of 1163524987 is about 34110.4820692995. The cubic root of 1163524987 is about 1051.7807987704.

The spelling of 1163524987 in words is "one billion, one hundred sixty-three million, five hundred twenty-four thousand, nine hundred eighty-seven".