10021365 has 24 divisors (see below), whose sum is σ = 17777760. Its totient is φ = 5219424.

The previous prime is 10021357. The next prime is 10021393. The reversal of 10021365 is 56312001.

It is not a de Polignac number, because 10021365 - 2³ = 10021357 is a prime.

It is a Curzon number.

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, 655 + ... + 4524.

It is an arithmetic number, because the mean of its divisors is an integer number (740740).

Almost surely, 2^10021365 is an apocalyptic number.

10021365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10021365 is a deficient number, since it is larger than the sum of its proper divisors (7756395).

10021365 is a wasteful number, since it uses less digits than its factorization.

10021365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233 (or 5230 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 10021365 is about 3165.6539608744. The cubic root of 10021365 is about 215.5967915210.

Adding to 10021365 its reverse (56312001), we get a palindrome (66333366).

The spelling of 10021365 in words is "ten million, twenty-one thousand, three hundred sixty-five".