206026451 has 16 divisors (see below), whose sum is σ = 223077888. Its totient is φ = 189571200.

The previous prime is 206026441. The next prime is 206026493. The reversal of 206026451 is 154620602.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206026451 is a prime.

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 206026451.

It is not an unprimeable number, because it can be changed into a prime (206026421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157466 + ... + 158768.

It is an arithmetic number, because the mean of its divisors is an integer number (13942368).

Almost surely, 2^206026451 is an apocalyptic number.

206026451 is a deficient number, since it is larger than the sum of its proper divisors (17051437).

206026451 is a wasteful number, since it uses less digits than its factorization.

206026451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 206026451 is about 14353.6215290776. The cubic root of 206026451 is about 590.6193352797.

The spelling of 206026451 in words is "two hundred six million, twenty-six thousand, four hundred fifty-one".