142047619 has 16 divisors (see below), whose sum is σ = 169523200. Its totient is φ = 118911240.

The previous prime is 142047617. The next prime is 142047637. The reversal of 142047619 is 916740241.

It is not a de Polignac number, because 142047619 - 2¹ = 142047617 is a prime.

It is a super-2 number, since 2×142047619² = 40355052127138322, which contains 22 as substring.

142047619 is a modest number, since divided by 47619 gives 142 as remainder.

It is not an unprimeable number, because it can be changed into a prime (142047613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9934 + ... + 19564.

It is an arithmetic number, because the mean of its divisors is an integer number (10595200).

Almost surely, 2^142047619 is an apocalyptic number.

142047619 is a deficient number, since it is larger than the sum of its proper divisors (27475581).

142047619 is an frugal number, since it uses more digits than its factorization.

142047619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9695 (or 9681 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 142047619 is about 11918.3731691871. The cubic root of 142047619 is about 521.7686557741.

The spelling of 142047619 in words is "one hundred forty-two million, forty-seven thousand, six hundred nineteen".