1146056721 has 8 divisors (see below), whose sum is σ = 1535755200. Its totient is φ = 760198032.

The previous prime is 1146056689. The next prime is 1146056729. The reversal of 1146056721 is 1276506411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1146056721 - 2⁵ = 1146056689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1146056729) 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, 959250 + ... + 960443.

It is an arithmetic number, because the mean of its divisors is an integer number (191969400).

Almost surely, 2^1146056721 is an apocalyptic number.

It is an amenable number.

1146056721 is a deficient number, since it is larger than the sum of its proper divisors (389698479).

1146056721 is a wasteful number, since it uses less digits than its factorization.

1146056721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919895.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1146056721 is about 33853.4595130247. The cubic root of 1146056721 is about 1046.4906942565.

The spelling of 1146056721 in words is "one billion, one hundred forty-six million, fifty-six thousand, seven hundred twenty-one".