1154881712 has 20 divisors (see below), whose sum is σ = 2355351480. Its totient is φ = 547049088.

The previous prime is 1154881667. The next prime is 1154881733. The reversal of 1154881712 is 2171884511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1899173 + ... + 1899780.

It is an arithmetic number, because the mean of its divisors is an integer number (117767574).

Almost surely, 2^1154881712 is an apocalyptic number.

It is an amenable number.

1154881712 is an abundant number, since it is smaller than the sum of its proper divisors (1200469768).

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

1154881712 is a wasteful number, since it uses less digits than its factorization.

1154881712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798980 (or 3798974 counting only the distinct ones).

The product of its digits is 17920, while the sum is 38.

The square root of 1154881712 is about 33983.5506090814. The cubic root of 1154881712 is about 1049.1699296051.

The spelling of 1154881712 in words is "one billion, one hundred fifty-four million, eight hundred eighty-one thousand, seven hundred twelve".