1129246651 has 4 divisors (see below), whose sum is σ = 1216111792. Its totient is φ = 1042381512.

The previous prime is 1129246639. The next prime is 1129246661. The reversal of 1129246651 is 1566429211.

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 1129246651 - 2¹⁷ = 1129115579 is a prime.

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 1129246651.

It is not an unprimeable number, because it can be changed into a prime (1129246621) 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, 43432551 + ... + 43432576.

It is an arithmetic number, because the mean of its divisors is an integer number (304027948).

Almost surely, 2^1129246651 is an apocalyptic number.

1129246651 is a deficient number, since it is larger than the sum of its proper divisors (86865141).

1129246651 is an equidigital number, since it uses as much as digits as its factorization.

1129246651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86865140.

The product of its digits is 25920, while the sum is 37.

The square root of 1129246651 is about 33604.2653691462. The cubic root of 1129246651 is about 1041.3489187163.

The spelling of 1129246651 in words is "one billion, one hundred twenty-nine million, two hundred forty-six thousand, six hundred fifty-one".