201421799 has 2 divisors, whose sum is σ = 201421800. Its totient is φ = 201421798.

The previous prime is 201421789. The next prime is 201421841. The reversal of 201421799 is 997124102.

201421799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201421799 - 2⁸ = 201421543 is a prime.

It is a super-2 number, since 2×201421799² = 81141482224792802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201421789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100710899 + 100710900.

It is an arithmetic number, because the mean of its divisors is an integer number (100710900).

Almost surely, 2^201421799 is an apocalyptic number.

201421799 is a deficient number, since it is larger than the sum of its proper divisors (1).

201421799 is an equidigital number, since it uses as much as digits as its factorization.

201421799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 201421799 is about 14192.3147865315. The cubic root of 201421799 is about 586.1860651950.

The spelling of 201421799 in words is "two hundred one million, four hundred twenty-one thousand, seven hundred ninety-nine".