240143013 has 24 divisors (see below), whose sum is σ = 381553536. Its totient is φ = 145533960.

The previous prime is 240142993. The next prime is 240143041. The reversal of 240143013 is 310341042.

It is not a de Polignac number, because 240143013 - 2⁸ = 240142757 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240143213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1956 + ... + 22002.

It is an arithmetic number, because the mean of its divisors is an integer number (15898064).

Almost surely, 2^240143013 is an apocalyptic number.

It is an amenable number.

240143013 is a deficient number, since it is larger than the sum of its proper divisors (141410523).

240143013 is a wasteful number, since it uses less digits than its factorization.

240143013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20086 (or 20061 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 240143013 is about 15496.5484221487. The cubic root of 240143013 is about 621.5699140813.

Adding to 240143013 its reverse (310341042), we get a palindrome (550484055).

The spelling of 240143013 in words is "two hundred forty million, one hundred forty-three thousand, thirteen".