1129156651 has 16 divisors (see below), whose sum is σ = 1336414464. Its totient is φ = 933930144.

The previous prime is 1129156649. The next prime is 1129156667. The reversal of 1129156651 is 1566519211.

It is not a de Polignac number, because 1129156651 - 2¹ = 1129156649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1129156651.

It is not an unprimeable number, because it can be changed into a prime (1129156601) 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, 2385 + ... + 47581.

It is an arithmetic number, because the mean of its divisors is an integer number (83525904).

Almost surely, 2^1129156651 is an apocalyptic number.

1129156651 is a deficient number, since it is larger than the sum of its proper divisors (207257813).

1129156651 is an equidigital number, since it uses as much as digits as its factorization.

1129156651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45330.

The product of its digits is 16200, while the sum is 37.

The square root of 1129156651 is about 33602.9262267440. The cubic root of 1129156651 is about 1041.3212531062.

The spelling of 1129156651 in words is "one billion, one hundred twenty-nine million, one hundred fifty-six thousand, six hundred fifty-one".