15230565 has 64 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 6834240.

The previous prime is 15230563. The next prime is 15230581. The reversal of 15230565 is 56503251.

15230565 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15230565 - 2¹ = 15230563 is a prime.

It is a super-2 number, since 2×15230565² = 463940220438450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

15230565 is strictly pandigital in base 8.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15230563) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66982 + ... + 67208.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^15230565 is an apocalyptic number.

15230565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15230565 is an abundant number, since it is smaller than the sum of its proper divisors (16288155).

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

15230565 is a wasteful number, since it uses less digits than its factorization.

15230565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 15230565 is about 3902.6356478667. The cubic root of 15230565 is about 247.8783927294.

The spelling of 15230565 in words is "fifteen million, two hundred thirty thousand, five hundred sixty-five".