101056789 has 8 divisors (see below), whose sum is σ = 107314200. Its totient is φ = 94834176.

The previous prime is 101056757. The next prime is 101056799. The reversal of 101056789 is 987650101.

It can be written as a sum of positive squares in 4 ways, for example, as 24581764 + 76475025 = 4958^2 + 8745^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 101056789 - 2⁵ = 101056757 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101056729) 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, 2584 + ... + 14449.

It is an arithmetic number, because the mean of its divisors is an integer number (13414275).

Almost surely, 2^101056789 is an apocalyptic number.

It is an amenable number.

101056789 is a deficient number, since it is larger than the sum of its proper divisors (6257411).

101056789 is a wasteful number, since it uses less digits than its factorization.

101056789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17399.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 101056789 is about 10052.7005824306. The cubic root of 101056789 is about 465.7882172363.

The spelling of 101056789 in words is "one hundred one million, fifty-six thousand, seven hundred eighty-nine".