142272419 has 8 divisors (see below), whose sum is σ = 146860560. Its totient is φ = 137737600.

The previous prime is 142272413. The next prime is 142272421. The reversal of 142272419 is 914272241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 142272419 - 2¹² = 142268323 is a prime.

It is a super-2 number, since 2×142272419² = 40482882416223122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142272413) 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, 7874 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (18357570).

Almost surely, 2^142272419 is an apocalyptic number.

142272419 is a deficient number, since it is larger than the sum of its proper divisors (4588141).

142272419 is a wasteful number, since it uses less digits than its factorization.

142272419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26661.

The product of its digits is 8064, while the sum is 32.

The square root of 142272419 is about 11927.8002582203. The cubic root of 142272419 is about 522.0437554765.

The spelling of 142272419 in words is "one hundred forty-two million, two hundred seventy-two thousand, four hundred nineteen".