1131529870 has 32 divisors (see below), whose sum is σ = 2095178400. Its totient is φ = 439808640.

The previous prime is 1131529823. The next prime is 1131529897. The reversal of 1131529870 is 789251311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39456 + ... + 61804.

It is an arithmetic number, because the mean of its divisors is an integer number (65474325).

Almost surely, 2^1131529870 is an apocalyptic number.

1131529870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131529870 is a deficient number, since it is larger than the sum of its proper divisors (963648530).

1131529870 is a wasteful number, since it uses less digits than its factorization.

1131529870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22500.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1131529870 is about 33638.2203750436. The cubic root of 1131529870 is about 1042.0502792189.

The spelling of 1131529870 in words is "one billion, one hundred thirty-one million, five hundred twenty-nine thousand, eight hundred seventy".