1129925770 has 16 divisors (see below), whose sum is σ = 2038945608. Its totient is φ = 450841600.

The previous prime is 1129925717. The next prime is 1129925773. The reversal of 1129925770 is 775299211.

It can be written as a sum of positive squares in 4 ways, for example, as 1090122289 + 39803481 = 33017^2 + 6309^2 .

It is not an unprimeable number, because it can be changed into a prime (1129925773) 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 7 ways as a sum of consecutive naturals, for example, 136879 + ... + 144898.

Almost surely, 2^1129925770 is an apocalyptic number.

1129925770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1129925770 is a deficient number, since it is larger than the sum of its proper divisors (909019838).

1129925770 is a wasteful number, since it uses less digits than its factorization.

1129925770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282185.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 1129925770 is about 33614.3685051497. The cubic root of 1129925770 is about 1041.5576295753.

The spelling of 1129925770 in words is "one billion, one hundred twenty-nine million, nine hundred twenty-five thousand, seven hundred seventy".