206150657 has 2 divisors, whose sum is σ = 206150658. Its totient is φ = 206150656.

The previous prime is 206150629. The next prime is 206150663. The reversal of 206150657 is 756051602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115691536 + 90459121 = 10756^2 + 9511^2 .

It is a cyclic number.

It is not a de Polignac number, because 206150657 - 2⁸ = 206150401 is a prime.

It is not a weakly prime, because it can be changed into another prime (206150617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103075328 + 103075329.

It is an arithmetic number, because the mean of its divisors is an integer number (103075329).

Almost surely, 2^206150657 is an apocalyptic number.

It is an amenable number.

206150657 is a deficient number, since it is larger than the sum of its proper divisors (1).

206150657 is an equidigital number, since it uses as much as digits as its factorization.

206150657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 206150657 is about 14357.9475204501. The cubic root of 206150657 is about 590.7379992150.

The spelling of 206150657 in words is "two hundred six million, one hundred fifty thousand, six hundred fifty-seven".