142340807 has 16 divisors (see below), whose sum is σ = 168393792. Its totient is φ = 117780480.

The previous prime is 142340791. The next prime is 142340833. The reversal of 142340807 is 708043241.

It is a cyclic number.

It is not a de Polignac number, because 142340807 - 2⁴ = 142340791 is a prime.

It is a super-2 number, since 2×142340807² = 40521810674822498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142340807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142340867) 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 15 ways as a sum of consecutive naturals, for example, 25283 + ... + 30395.

It is an arithmetic number, because the mean of its divisors is an integer number (10524612).

Almost surely, 2^142340807 is an apocalyptic number.

142340807 is a deficient number, since it is larger than the sum of its proper divisors (26052985).

142340807 is an equidigital number, since it uses as much as digits as its factorization.

142340807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 142340807 is about 11930.6666620101. Note that the first 5 decimals coincide. The cubic root of 142340807 is about 522.1273880122.

The spelling of 142340807 in words is "one hundred forty-two million, three hundred forty thousand, eight hundred seven".