210401129 has 16 divisors (see below), whose sum is σ = 230283648. Its totient is φ = 191423232.

The previous prime is 210401089. The next prime is 210401131. The reversal of 210401129 is 921104012.

It is a cyclic number.

It is not a de Polignac number, because 210401129 - 2⁸ = 210400873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210401129.

It is not an unprimeable number, because it can be changed into a prime (210401159) 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, 104042 + ... + 106044.

It is an arithmetic number, because the mean of its divisors is an integer number (14392728).

Almost surely, 2^210401129 is an apocalyptic number.

It is an amenable number.

210401129 is a deficient number, since it is larger than the sum of its proper divisors (19882519).

210401129 is a wasteful number, since it uses less digits than its factorization.

210401129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 210401129 is about 14505.2104086773. The cubic root of 210401129 is about 594.7704116219.

The spelling of 210401129 in words is "two hundred ten million, four hundred one thousand, one hundred twenty-nine".