201287502 has 48 divisors (see below), whose sum is σ = 472748640. Its totient is φ = 61528896.

The previous prime is 201287453. The next prime is 201287543. The reversal of 201287502 is 205782102.

It is a super-2 number, since 2×201287502² = 81033316922800008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33999 + ... + 39477.

It is an arithmetic number, because the mean of its divisors is an integer number (9848930).

Almost surely, 2^201287502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201287502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236374320).

201287502 is an abundant number, since it is smaller than the sum of its proper divisors (271461138).

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

201287502 is a wasteful number, since it uses less digits than its factorization.

201287502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657 (or 5654 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 201287502 is about 14187.5826693627. The cubic root of 201287502 is about 586.0557573321.

The spelling of 201287502 in words is "two hundred one million, two hundred eighty-seven thousand, five hundred two".