142565240 has 64 divisors (see below), whose sum is σ = 328946400. Its totient is φ = 55590912.

The previous prime is 142565221. The next prime is 142565243. The reversal of 142565240 is 42565241.

142565240 is nontrivially palindromic in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142565243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455324 + ... + 455636.

Almost surely, 2^142565240 is an apocalyptic number.

142565240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142565240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164473200).

142565240 is an abundant number, since it is smaller than the sum of its proper divisors (186381160).

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

142565240 is a wasteful number, since it uses less digits than its factorization.

142565240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 142565240 is about 11940.0686765194. The cubic root of 142565240 is about 522.4016618577.

Subtracting from 142565240 its reverse (42565241), we obtain a palindrome (99999999).

The spelling of 142565240 in words is "one hundred forty-two million, five hundred sixty-five thousand, two hundred forty".