1129157924 has 12 divisors (see below), whose sum is σ = 1993514124. Its totient is φ = 559582464.

The previous prime is 1129157921. The next prime is 1129157933. The reversal of 1129157924 is 4297519211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 342916324 + 786241600 = 18518^2 + 28040^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1129157921) 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 3 ways as a sum of consecutive naturals, for example, 1248617 + ... + 1249520.

It is an arithmetic number, because the mean of its divisors is an integer number (166126177).

Almost surely, 2^1129157924 is an apocalyptic number.

It is an amenable number.

1129157924 is a deficient number, since it is larger than the sum of its proper divisors (864356200).

1129157924 is a wasteful number, since it uses less digits than its factorization.

1129157924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498254 (or 2498252 counting only the distinct ones).

The product of its digits is 45360, while the sum is 41.

The square root of 1129157924 is about 33602.9451685414. The cubic root of 1129157924 is about 1041.3216444311.

The spelling of 1129157924 in words is "one billion, one hundred twenty-nine million, one hundred fifty-seven thousand, nine hundred twenty-four".