142132815 has 24 divisors (see below), whose sum is σ = 268761168. Its totient is φ = 68912640.

The previous prime is 142132813. The next prime is 142132849. The reversal of 142132815 is 518231241.

142132815 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 142132815 - 2¹ = 142132813 is a prime.

It is a super-3 number, since 3×142132815³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142132811) 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, 143074 + ... + 144063.

It is an arithmetic number, because the mean of its divisors is an integer number (11198382).

Almost surely, 2^142132815 is an apocalyptic number.

142132815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142132815 is a deficient number, since it is larger than the sum of its proper divisors (126628353).

142132815 is a wasteful number, since it uses less digits than its factorization.

142132815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287159 (or 287156 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 142132815 is about 11921.9467789451. The cubic root of 142132815 is about 521.8729487770.

The spelling of 142132815 in words is "one hundred forty-two million, one hundred thirty-two thousand, eight hundred fifteen".