142013615 has 8 divisors (see below), whose sum is σ = 177825888. Its totient is φ = 108671200.

The previous prime is 142013591. The next prime is 142013617. The reversal of 142013615 is 516310241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-142013615 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142013617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617336 + ... + 617565.

It is an arithmetic number, because the mean of its divisors is an integer number (22228236).

Almost surely, 2^142013615 is an apocalyptic number.

142013615 is a deficient number, since it is larger than the sum of its proper divisors (35812273).

142013615 is a wasteful number, since it uses less digits than its factorization.

142013615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234929.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 142013615 is about 11916.9465468299. The cubic root of 142013615 is about 521.7270180063.

Adding to 142013615 its reverse (516310241), we get a palindrome (658323856).

The spelling of 142013615 in words is "one hundred forty-two million, thirteen thousand, six hundred fifteen".