146205857 has 6 divisors (see below), whose sum is σ = 170076258. Its totient is φ = 125319264.

The previous prime is 146205823. The next prime is 146205887. The reversal of 146205857 is 758502641.

146205857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 134536801 + 11669056 = 11599^2 + 3416^2 .

It is not a de Polignac number, because 146205857 - 2⁶ = 146205793 is a prime.

It is a super-2 number, since 2×146205857² = 42752305242208898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146205857.

It is not an unprimeable number, because it can be changed into a prime (146205887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1491848 + ... + 1491945.

It is an arithmetic number, because the mean of its divisors is an integer number (28346043).

Almost surely, 2^146205857 is an apocalyptic number.

It is an amenable number.

146205857 is a deficient number, since it is larger than the sum of its proper divisors (23870401).

146205857 is an equidigital number, since it uses as much as digits as its factorization.

146205857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983807 (or 2983800 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 146205857 is about 12091.5613962796. The cubic root of 146205857 is about 526.8111079462.

The spelling of 146205857 in words is "one hundred forty-six million, two hundred five thousand, eight hundred fifty-seven".