1163042651 has 4 divisors (see below), whose sum is σ = 1203147600. Its totient is φ = 1122937704.

The previous prime is 1163042627. The next prime is 1163042689. The reversal of 1163042651 is 1562403611.

It is a happy number.

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 1163042651 - 2²² = 1158848347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 40104919 = 1163042651 / (1 + 1 + 6 + 3 + 0 + 4 + 2 + 6 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163044651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20052431 + ... + 20052488.

It is an arithmetic number, because the mean of its divisors is an integer number (300786900).

Almost surely, 2^1163042651 is an apocalyptic number.

1163042651 is a deficient number, since it is larger than the sum of its proper divisors (40104949).

1163042651 is an equidigital number, since it uses as much as digits as its factorization.

1163042651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40104948.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1163042651 is about 34103.4111343719. The cubic root of 1163042651 is about 1051.6354410954.

The spelling of 1163042651 in words is "one billion, one hundred sixty-three million, forty-two thousand, six hundred fifty-one".