229908901 has 16 divisors (see below), whose sum is σ = 248151600. Its totient is φ = 212226048.

The previous prime is 229908883. The next prime is 229908907. The reversal of 229908901 is 109809922.

It can be written as a sum of positive squares in 8 ways, for example, as 85932900 + 143976001 = 9270^2 + 11999^2 .

It is a cyclic number.

It is not a de Polignac number, because 229908901 - 2¹⁵ = 229876133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229908907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283785 + ... + 284593.

It is an arithmetic number, because the mean of its divisors is an integer number (15509475).

Almost surely, 2^229908901 is an apocalyptic number.

It is an amenable number.

229908901 is a deficient number, since it is larger than the sum of its proper divisors (18242699).

229908901 is a wasteful number, since it uses less digits than its factorization.

229908901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 229908901 is about 15162.7471455538. The cubic root of 229908901 is about 612.6116645503.

It can be divided in two parts, 229 and 908901, that multiplied together give a square (208138329 = 14427²).

The spelling of 229908901 in words is "two hundred twenty-nine million, nine hundred eight thousand, nine hundred one".