1143800870 has 16 divisors (see below), whose sum is σ = 2059231248. Its totient is φ = 457433760.

The previous prime is 1143800863. The next prime is 1143800873. The reversal of 1143800870 is 780083411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143800873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85325 + ... + 97815.

It is an arithmetic number, because the mean of its divisors is an integer number (128701953).

Almost surely, 2^1143800870 is an apocalyptic number.

1143800870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143800870 is a deficient number, since it is larger than the sum of its proper divisors (915430378).

1143800870 is a wasteful number, since it uses less digits than its factorization.

1143800870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21655.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1143800870 is about 33820.1252215304. The cubic root of 1143800870 is about 1045.8036201495.

The spelling of 1143800870 in words is "one billion, one hundred forty-three million, eight hundred thousand, eight hundred seventy".