142472719 has 4 divisors (see below), whose sum is σ = 142515144. Its totient is φ = 142430296.

The previous prime is 142472711. The next prime is 142472731. The reversal of 142472719 is 917274241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142472719 - 2³ = 142472711 is a prime.

It is a super-2 number, since 2×142472719² = 40596951318505922, 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 (142472711) 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 3 ways as a sum of consecutive naturals, for example, 15697 + ... + 23050.

It is an arithmetic number, because the mean of its divisors is an integer number (35628786).

Almost surely, 2^142472719 is an apocalyptic number.

142472719 is a deficient number, since it is larger than the sum of its proper divisors (42425).

142472719 is an equidigital number, since it uses as much as digits as its factorization.

142472719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42424.

The product of its digits is 28224, while the sum is 37.

The square root of 142472719 is about 11936.1936562708. The cubic root of 142472719 is about 522.2886292008.

The spelling of 142472719 in words is "one hundred forty-two million, four hundred seventy-two thousand, seven hundred nineteen".