201521462 has 32 divisors (see below), whose sum is σ = 319537440. Its totient is φ = 95212800.

The previous prime is 201521459. The next prime is 201521471. The reversal of 201521462 is 264125102.

It is a happy number.

It is a super-2 number, since 2×201521462² = 81221799293234888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440738 + ... + 441194.

It is an arithmetic number, because the mean of its divisors is an integer number (9985545).

Almost surely, 2^201521462 is an apocalyptic number.

201521462 is a deficient number, since it is larger than the sum of its proper divisors (118015978).

201521462 is a wasteful number, since it uses less digits than its factorization.

201521462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 201521462 is about 14195.8255131570. The cubic root of 201521462 is about 586.2827303842.

Adding to 201521462 its reverse (264125102), we get a palindrome (465646564).

The spelling of 201521462 in words is "two hundred one million, five hundred twenty-one thousand, four hundred sixty-two".