206315453 has 2 divisors, whose sum is σ = 206315454. Its totient is φ = 206315452.

The previous prime is 206315429. The next prime is 206315467. The reversal of 206315453 is 354513602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136375684 + 69939769 = 11678^2 + 8363^2 .

It is a cyclic number.

It is not a de Polignac number, because 206315453 - 2¹⁰ = 206314429 is a prime.

It is a super-2 number, since 2×206315453² = 85132132293190418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206315413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103157726 + 103157727.

It is an arithmetic number, because the mean of its divisors is an integer number (103157727).

Almost surely, 2^206315453 is an apocalyptic number.

It is an amenable number.

206315453 is a deficient number, since it is larger than the sum of its proper divisors (1).

206315453 is an equidigital number, since it uses as much as digits as its factorization.

206315453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 206315453 is about 14363.6852165452. The cubic root of 206315453 is about 590.8953684767.

The spelling of 206315453 in words is "two hundred six million, three hundred fifteen thousand, four hundred fifty-three".