142403313 has 16 divisors (see below), whose sum is σ = 205546880. Its totient is φ = 87174144.

The previous prime is 142403299. The next prime is 142403329. The reversal of 142403313 is 313304241.

It is not a de Polignac number, because 142403313 - 2⁶ = 142403249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142403313.

It is not an unprimeable number, because it can be changed into a prime (142403333) 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, 1933 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (12846680).

Almost surely, 2^142403313 is an apocalyptic number.

142403313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142403313 is a deficient number, since it is larger than the sum of its proper divisors (63143567).

142403313 is a wasteful number, since it uses less digits than its factorization.

142403313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19128.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 142403313 is about 11933.2859263490. The cubic root of 142403313 is about 522.2038039494.

Adding to 142403313 its reverse (313304241), we get a palindrome (455707554).

The spelling of 142403313 in words is "one hundred forty-two million, four hundred three thousand, three hundred thirteen".