1153042780 has 12 divisors (see below), whose sum is σ = 2421389880. Its totient is φ = 461217104.

The previous prime is 1153042771. The next prime is 1153042789. The reversal of 1153042780 is 872403511.

It is an interprime number because it is at equal distance from previous prime (1153042771) and next prime (1153042789).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153042789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28826050 + ... + 28826089.

It is an arithmetic number, because the mean of its divisors is an integer number (201782490).

Almost surely, 2^1153042780 is an apocalyptic number.

1153042780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153042780 is an abundant number, since it is smaller than the sum of its proper divisors (1268347100).

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

1153042780 is a wasteful number, since it uses less digits than its factorization.

1153042780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57652148 (or 57652146 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1153042780 is about 33956.4836224247. The cubic root of 1153042780 is about 1048.6127651534.

The spelling of 1153042780 in words is "one billion, one hundred fifty-three million, forty-two thousand, seven hundred eighty".