142342441 has 4 divisors (see below), whose sum is σ = 146189572. Its totient is φ = 138495312.

The previous prime is 142342391. The next prime is 142342457. The reversal of 142342441 is 144243241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 106090000 + 36252441 = 10300^2 + 6021^2 .

It is a cyclic number.

It is not a de Polignac number, because 142342441 - 2¹³ = 142334249 is a prime.

It is a super-2 number, since 2×142342441² = 40522741019676962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142342141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923510 + ... + 1923583.

It is an arithmetic number, because the mean of its divisors is an integer number (36547393).

Almost surely, 2^142342441 is an apocalyptic number.

It is an amenable number.

142342441 is a deficient number, since it is larger than the sum of its proper divisors (3847131).

142342441 is an equidigital number, since it uses as much as digits as its factorization.

142342441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847130.

The product of its digits is 3072, while the sum is 25.

The square root of 142342441 is about 11930.7351408034. The cubic root of 142342441 is about 522.1293859234.

Adding to 142342441 its reverse (144243241), we get a palindrome (286585682).

The spelling of 142342441 in words is "one hundred forty-two million, three hundred forty-two thousand, four hundred forty-one".