1129575140 has 24 divisors (see below), whose sum is σ = 2373883512. Its totient is φ = 451491840.

The previous prime is 1129575131. The next prime is 1129575151. The reversal of 1129575140 is 415759211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 271788196 + 857786944 = 16486^2 + 29288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1129575140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7172 + ... + 48068.

It is an arithmetic number, because the mean of its divisors is an integer number (98911813).

Almost surely, 2^1129575140 is an apocalyptic number.

1129575140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129575140 is an abundant number, since it is smaller than the sum of its proper divisors (1244308372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129575140 is a wasteful number, since it uses less digits than its factorization.

1129575140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42287 (or 42285 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 1129575140 is about 33609.1526224628. The cubic root of 1129575140 is about 1041.4498823399.

The spelling of 1129575140 in words is "one billion, one hundred twenty-nine million, five hundred seventy-five thousand, one hundred forty".