201494879 has 2 divisors, whose sum is σ = 201494880. Its totient is φ = 201494878.

The previous prime is 201494873. The next prime is 201494903. The reversal of 201494879 is 978494102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201494879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201494873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100747439 + 100747440.

It is an arithmetic number, because the mean of its divisors is an integer number (100747440).

Almost surely, 2^201494879 is an apocalyptic number.

201494879 is a deficient number, since it is larger than the sum of its proper divisors (1).

201494879 is an equidigital number, since it uses as much as digits as its factorization.

201494879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 201494879 is about 14194.8891859007. The cubic root of 201494879 is about 586.2569501042.

The spelling of 201494879 in words is "two hundred one million, four hundred ninety-four thousand, eight hundred seventy-nine".