1130181780 has 96 divisors (see below), whose sum is σ = 3894799104. Its totient is φ = 238454784.

The previous prime is 1130181749. The next prime is 1130181781. The reversal of 1130181780 is 871810311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130181781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98037 + ... + 108956.

It is an arithmetic number, because the mean of its divisors is an integer number (40570824).

Almost surely, 2^1130181780 is an apocalyptic number.

1130181780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130181780 is an abundant number, since it is smaller than the sum of its proper divisors (2764617324).

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

1130181780 is a wasteful number, since it uses less digits than its factorization.

1130181780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207025 (or 207023 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 30.

The square root of 1130181780 is about 33618.1763336443. The cubic root of 1130181780 is about 1041.6362863744.

The spelling of 1130181780 in words is "one billion, one hundred thirty million, one hundred eighty-one thousand, seven hundred eighty".