216142365 has 32 divisors (see below), whose sum is σ = 366508800. Its totient is φ = 108577280.

The previous prime is 216142361. The next prime is 216142379. The reversal of 216142365 is 563241612.

It is not a de Polignac number, because 216142365 - 2² = 216142361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216142361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11776 + ... + 23894.

It is an arithmetic number, because the mean of its divisors is an integer number (11453400).

Almost surely, 2^216142365 is an apocalyptic number.

It is an amenable number.

216142365 is a deficient number, since it is larger than the sum of its proper divisors (150366435).

216142365 is a wasteful number, since it uses less digits than its factorization.

216142365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12197.

The product of its digits is 8640, while the sum is 30.

The square root of 216142365 is about 14701.7810145574. The cubic root of 216142365 is about 600.1317904944.

Adding to 216142365 its reverse (563241612), we get a palindrome (779383977).

The spelling of 216142365 in words is "two hundred sixteen million, one hundred forty-two thousand, three hundred sixty-five".