142347841 has 4 divisors (see below), whose sum is σ = 142975152. Its totient is φ = 141720532.

The previous prime is 142347839. The next prime is 142347853. The reversal of 142347841 is 148743241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142347841 - 2¹ = 142347839 is a prime.

It is a super-2 number, since 2×142347841² = 40525815674722562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142347797 and 142347806.

It is not an unprimeable number, because it can be changed into a prime (142347041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313315 + ... + 313768.

It is an arithmetic number, because the mean of its divisors is an integer number (35743788).

Almost surely, 2^142347841 is an apocalyptic number.

It is an amenable number.

142347841 is a deficient number, since it is larger than the sum of its proper divisors (627311).

142347841 is an equidigital number, since it uses as much as digits as its factorization.

142347841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627310.

The product of its digits is 21504, while the sum is 34.

The square root of 142347841 is about 11930.9614449130. The cubic root of 142347841 is about 522.1359884589.

The spelling of 142347841 in words is "one hundred forty-two million, three hundred forty-seven thousand, eight hundred forty-one".