201423126 has 8 divisors (see below), whose sum is σ = 402846264. Its totient is φ = 67141040.

The previous prime is 201423097. The next prime is 201423127. The reversal of 201423126 is 621324102.

It is a sphenic number, since it is the product of 3 distinct primes.

201423126 is an admirable number.

It is a super-2 number, since 2×201423126² = 81142551375223752, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201423127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16785255 + ... + 16785266.

It is an arithmetic number, because the mean of its divisors is an integer number (50355783).

Almost surely, 2^201423126 is an apocalyptic number.

201423126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201423126 is a wasteful number, since it uses less digits than its factorization.

201423126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33570526.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 201423126 is about 14192.3615371086. The cubic root of 201423126 is about 586.1873524890.

Adding to 201423126 its reverse (621324102), we get a palindrome (822747228).

The spelling of 201423126 in words is "two hundred one million, four hundred twenty-three thousand, one hundred twenty-six".