1142547680 has 24 divisors (see below), whose sum is σ = 2699269272. Its totient is φ = 457019008.

The previous prime is 1142547677. The next prime is 1142547737. The reversal of 1142547680 is 867452411.

It is a congruent number.

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, 3570302 + ... + 3570621.

It is an arithmetic number, because the mean of its divisors is an integer number (112469553).

Almost surely, 2^1142547680 is an apocalyptic number.

1142547680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142547680 is an abundant number, since it is smaller than the sum of its proper divisors (1556721592).

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

1142547680 is an equidigital number, since it uses as much as digits as its factorization.

1142547680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140938 (or 7140930 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 1142547680 is about 33801.5928618756. The cubic root of 1142547680 is about 1045.4215403638.

The spelling of 1142547680 in words is "one billion, one hundred forty-two million, five hundred forty-seven thousand, six hundred eighty".