206010157 has 4 divisors (see below), whose sum is σ = 206210620. Its totient is φ = 205809696.

The previous prime is 206010151. The next prime is 206010209. The reversal of 206010157 is 751010602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 751010602 = 2 ⋅375505301.

It can be written as a sum of positive squares in 2 ways, for example, as 158482921 + 47527236 = 12589^2 + 6894^2 .

It is a cyclic number.

It is not a de Polignac number, because 206010157 - 2¹¹ = 206008109 is a prime.

It is a super-3 number, since 3×206010157³ (a number of 26 digits) contains 333 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 (206010151) 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, 98682 + ... + 100747.

It is an arithmetic number, because the mean of its divisors is an integer number (51552655).

Almost surely, 2^206010157 is an apocalyptic number.

It is an amenable number.

206010157 is a deficient number, since it is larger than the sum of its proper divisors (200463).

206010157 is a wasteful number, since it uses less digits than its factorization.

206010157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200462.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 206010157 is about 14353.0539259072. The cubic root of 206010157 is about 590.6037647787.

Adding to 206010157 its reverse (751010602), we get a palindrome (957020759).

The spelling of 206010157 in words is "two hundred six million, ten thousand, one hundred fifty-seven".