1163537427 has 16 divisors (see below), whose sum is σ = 1671557888. Its totient is φ = 715664160.

The previous prime is 1163537423. The next prime is 1163537503. The reversal of 1163537427 is 7247353611.

It is not a de Polignac number, because 1163537427 - 2² = 1163537423 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1163537423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86178 + ... + 98760.

It is an arithmetic number, because the mean of its divisors is an integer number (104472368).

Almost surely, 2^1163537427 is an apocalyptic number.

1163537427 is a deficient number, since it is larger than the sum of its proper divisors (508020461).

1163537427 is a wasteful number, since it uses less digits than its factorization.

1163537427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14970.

The product of its digits is 105840, while the sum is 39.

The square root of 1163537427 is about 34110.6644174516. The cubic root of 1163537427 is about 1051.7845471806.

The spelling of 1163537427 in words is "one billion, one hundred sixty-three million, five hundred thirty-seven thousand, four hundred twenty-seven".