142087719 has 8 divisors (see below), whose sum is σ = 199421440. Its totient is φ = 89739576.

The previous prime is 142087703. The next prime is 142087789. The reversal of 142087719 is 917780241.

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

It is not a de Polignac number, because 142087719 - 2⁴ = 142087703 is a prime.

It is a super-2 number, since 2×142087719² = 40377839781245922, 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 (142087789) 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, 1246327 + ... + 1246440.

It is an arithmetic number, because the mean of its divisors is an integer number (24927680).

Almost surely, 2^142087719 is an apocalyptic number.

142087719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

142087719 is a deficient number, since it is larger than the sum of its proper divisors (57333721).

142087719 is a wasteful number, since it uses less digits than its factorization.

142087719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492789.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 142087719 is about 11920.0553270528. The cubic root of 142087719 is about 521.8177495327.

The spelling of 142087719 in words is "one hundred forty-two million, eighty-seven thousand, seven hundred nineteen".