858132061 has 4 divisors (see below), whose sum is σ = 858231612. Its totient is φ = 858032512.

The previous prime is 858132031. The next prime is 858132101. The reversal of 858132061 is 160231858.

858132061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 469805625 + 388326436 = 21675^2 + 19706^2 .

It is a cyclic number.

It is not a de Polignac number, because 858132061 - 2⁵ = 858132029 is a prime.

It is a super-2 number, since 2×858132061² = 1472781268232215442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858132031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35476 + ... + 54541.

It is an arithmetic number, because the mean of its divisors is an integer number (214557903).

Almost surely, 2^858132061 is an apocalyptic number.

It is an amenable number.

858132061 is a deficient number, since it is larger than the sum of its proper divisors (99551).

858132061 is an equidigital number, since it uses as much as digits as its factorization.

858132061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99550.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 858132061 is about 29293.8911891200. The cubic root of 858132061 is about 950.2795339912.

The spelling of 858132061 in words is "eight hundred fifty-eight million, one hundred thirty-two thousand, sixty-one".