203413161 has 48 divisors (see below), whose sum is σ = 327499200. Its totient is φ = 111888000.

The previous prime is 203413153. The next prime is 203413169. The reversal of 203413161 is 161314302.

It is an interprime number because it is at equal distance from previous prime (203413153) and next prime (203413169).

It is not a de Polignac number, because 203413161 - 2³ = 203413153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203413169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 810286 + ... + 810536.

It is an arithmetic number, because the mean of its divisors is an integer number (6822900).

Almost surely, 2^203413161 is an apocalyptic number.

203413161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

203413161 is a deficient number, since it is larger than the sum of its proper divisors (124086039).

203413161 is a wasteful number, since it uses less digits than its factorization.

203413161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 203413161 is about 14262.2985875349. The cubic root of 203413161 is about 588.1115151308. Note that the first 3 decimals are identical.

Adding to 203413161 its reverse (161314302), we get a palindrome (364727463).

The spelling of 203413161 in words is "two hundred three million, four hundred thirteen thousand, one hundred sixty-one".