201331452 has 24 divisors (see below), whose sum is σ = 536884096. Its totient is φ = 57523248.

The previous prime is 201331447. The next prime is 201331457. The reversal of 201331452 is 254133102.

It is an interprime number because it is at equal distance from previous prime (201331447) and next prime (201331457).

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 (201331457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198318 + ... + 1198485.

Almost surely, 2^201331452 is an apocalyptic number.

It is an amenable number.

201331452 is an abundant number, since it is smaller than the sum of its proper divisors (335552644).

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

201331452 is a wasteful number, since it uses less digits than its factorization.

201331452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396817 (or 2396815 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 201331452 is about 14189.1314744772. The cubic root of 201331452 is about 586.0984082267.

Adding to 201331452 its reverse (254133102), we get a palindrome (455464554).

The spelling of 201331452 in words is "two hundred one million, three hundred thirty-one thousand, four hundred fifty-two".