201215436 has 24 divisors (see below), whose sum is σ = 470534064. Its totient is φ = 66924480.

The previous prime is 201215419. The next prime is 201215459. The reversal of 201215436 is 634512102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12655 + ... + 23718.

It is an arithmetic number, because the mean of its divisors is an integer number (19605586).

Almost surely, 2^201215436 is an apocalyptic number.

It is an amenable number.

201215436 is an abundant number, since it is smaller than the sum of its proper divisors (269318628).

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

201215436 is a wasteful number, since it uses less digits than its factorization.

201215436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36841 (or 36839 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 201215436 is about 14185.0426858716. The cubic root of 201215436 is about 585.9858080718.

Adding to 201215436 its reverse (634512102), we get a palindrome (835727538).

The spelling of 201215436 in words is "two hundred one million, two hundred fifteen thousand, four hundred thirty-six".