142236513 has 16 divisors (see below), whose sum is σ = 211604800. Its totient is φ = 94426560.

The previous prime is 142236499. The next prime is 142236517. The reversal of 142236513 is 315632241.

142236513 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 3 + 651 + 3 = 666.

142236513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142236513 - 2¹² = 142232417 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142236517) 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, 4423 + ... + 17436.

It is an arithmetic number, because the mean of its divisors is an integer number (13225300).

Almost surely, 2^142236513 is an apocalyptic number.

It is an amenable number.

142236513 is a deficient number, since it is larger than the sum of its proper divisors (69368287).

142236513 is a wasteful number, since it uses less digits than its factorization.

142236513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22109 (or 22103 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 142236513 is about 11926.2950240215. The cubic root of 142236513 is about 521.9998348526. Note that the first 3 decimals are identical.

Adding to 142236513 its reverse (315632241), we get a palindrome (457868754).

It can be divided in two parts, 14223 and 6513, that added together give a 4-th power (20736 = 12⁴).

The spelling of 142236513 in words is "one hundred forty-two million, two hundred thirty-six thousand, five hundred thirteen".