1129031560 has 32 divisors (see below), whose sum is σ = 2553638400. Its totient is φ = 449245120.

The previous prime is 1129031551. The next prime is 1129031573. The reversal of 1129031560 is 651309211.

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, 66250 + ... + 81529.

It is an arithmetic number, because the mean of its divisors is an integer number (79801200).

Almost surely, 2^1129031560 is an apocalyptic number.

1129031560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129031560 is an abundant number, since it is smaller than the sum of its proper divisors (1424606840).

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

1129031560 is a wasteful number, since it uses less digits than its factorization.

1129031560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147981 (or 147977 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1129031560 is about 33601.0648640783. The cubic root of 1129031560 is about 1041.2827982330.

The spelling of 1129031560 in words is "one billion, one hundred twenty-nine million, thirty-one thousand, five hundred sixty".