201261424 has 150 divisors (see below), whose sum is σ = 508482336. Its totient is φ = 77051520.

The previous prime is 201261413. The next prime is 201261443. The reversal of 201261424 is 424162102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201261395 and 201261404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 6492289 + ... + 6492319.

Almost surely, 2^201261424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201261424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254241168).

201261424 is an abundant number, since it is smaller than the sum of its proper divisors (307220912).

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

201261424 is an equidigital number, since it uses as much as digits as its factorization.

201261424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 201261424 is about 14186.6635964909. The cubic root of 201261424 is about 586.0304472293.

It can be divided in two parts, 2012 and 61424, that added together give a palindrome (63436).

The spelling of 201261424 in words is "two hundred one million, two hundred sixty-one thousand, four hundred twenty-four".