142020719 has 4 divisors (see below), whose sum is σ = 143731896. Its totient is φ = 140309544.

The previous prime is 142020709. The next prime is 142020727. The reversal of 142020719 is 917020241.

142020719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917020241 = 1319 ⋅695239.

It is a cyclic number.

It is not a de Polignac number, because 142020719 - 2¹⁶ = 141955183 is a prime.

It is a super-2 number, since 2×142020719² = 40339769250553922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142020709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855464 + ... + 855629.

It is an arithmetic number, because the mean of its divisors is an integer number (35932974).

Almost surely, 2^142020719 is an apocalyptic number.

142020719 is a deficient number, since it is larger than the sum of its proper divisors (1711177).

142020719 is an equidigital number, since it uses as much as digits as its factorization.

142020719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711176.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 142020719 is about 11917.2446060321. The cubic root of 142020719 is about 521.7357173763.

The spelling of 142020719 in words is "one hundred forty-two million, twenty thousand, seven hundred nineteen".