203412401 has 4 divisors (see below), whose sum is σ = 203570532. Its totient is φ = 203254272.

The previous prime is 203412397. The next prime is 203412413. The reversal of 203412401 is 104214302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142181776 + 61230625 = 11924^2 + 7825^2 .

It is a cyclic number.

It is not a de Polignac number, because 203412401 - 2² = 203412397 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 203412401.

It is not an unprimeable number, because it can be changed into a prime (203412481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77120 + ... + 79713.

It is an arithmetic number, because the mean of its divisors is an integer number (50892633).

Almost surely, 2^203412401 is an apocalyptic number.

It is an amenable number.

203412401 is a deficient number, since it is larger than the sum of its proper divisors (158131).

203412401 is a wasteful number, since it uses less digits than its factorization.

203412401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158130.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 203412401 is about 14262.2719438384. The cubic root of 203412401 is about 588.1107826884.

Adding to 203412401 its reverse (104214302), we get a palindrome (307626703).

The spelling of 203412401 in words is "two hundred three million, four hundred twelve thousand, four hundred one".