201421532 has 12 divisors (see below), whose sum is σ = 379602216. Its totient is φ = 92963760.

The previous prime is 201421531. The next prime is 201421543. The reversal of 201421532 is 235124102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201421531) 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, 1936694 + ... + 1936797.

It is an arithmetic number, because the mean of its divisors is an integer number (31633518).

Almost surely, 2^201421532 is an apocalyptic number.

It is an amenable number.

201421532 is a deficient number, since it is larger than the sum of its proper divisors (178180684).

201421532 is a wasteful number, since it uses less digits than its factorization.

201421532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873508 (or 3873506 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201421532 is about 14192.3053800290. The cubic root of 201421532 is about 586.1858061834.

Adding to 201421532 its reverse (235124102), we get a palindrome (436545634).

The spelling of 201421532 in words is "two hundred one million, four hundred twenty-one thousand, five hundred thirty-two".