142242415 has 24 divisors (see below), whose sum is σ = 201618720. Its totient is φ = 94368960.

The previous prime is 142242377. The next prime is 142242433. The reversal of 142242415 is 514242241.

142242415 = 3181² + 3182² + ... + 3194².

It is not a de Polignac number, because 142242415 - 2¹¹ = 142240367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142242415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31521 + ... + 35749.

It is an arithmetic number, because the mean of its divisors is an integer number (8400780).

Almost surely, 2^142242415 is an apocalyptic number.

142242415 is a deficient number, since it is larger than the sum of its proper divisors (59376305).

142242415 is an equidigital number, since it uses as much as digits as its factorization.

142242415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303 (or 4272 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 142242415 is about 11926.5424578962. The cubic root of 142242415 is about 522.0070547531.

Adding to 142242415 its reverse (514242241), we get a palindrome (656484656).

The spelling of 142242415 in words is "one hundred forty-two million, two hundred forty-two thousand, four hundred fifteen".