142426815 has 8 divisors (see below), whose sum is σ = 227882928. Its totient is φ = 75960960.

The previous prime is 142426807. The next prime is 142426819. The reversal of 142426815 is 518624241.

It is a happy number.

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

It is not a de Polignac number, because 142426815 - 2³ = 142426807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142426819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4747546 + ... + 4747575.

It is an arithmetic number, because the mean of its divisors is an integer number (28485366).

Almost surely, 2^142426815 is an apocalyptic number.

142426815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142426815 is a deficient number, since it is larger than the sum of its proper divisors (85456113).

142426815 is an equidigital number, since it uses as much as digits as its factorization.

142426815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9495129.

The product of its digits is 15360, while the sum is 33.

The square root of 142426815 is about 11934.2706103054. The cubic root of 142426815 is about 522.2325302444.

The spelling of 142426815 in words is "one hundred forty-two million, four hundred twenty-six thousand, eight hundred fifteen".