142154020441 has 4 divisors (see below), whose sum is σ = 142190371584. Its totient is φ = 142117669300.

The previous prime is 142154020439. The next prime is 142154020457. The reversal of 142154020441 is 144020451241.

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 142154020441 - 2¹ = 142154020439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142154029441) 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, 18169705 + ... + 18177526.

It is an arithmetic number, because the mean of its divisors is an integer number (35547592896).

Almost surely, 2^142154020441 is an apocalyptic number.

It is an amenable number.

142154020441 is a deficient number, since it is larger than the sum of its proper divisors (36351143).

142154020441 is an equidigital number, since it uses as much as digits as its factorization.

142154020441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36351142.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 142154020441 its reverse (144020451241), we get a palindrome (286174471682).

The spelling of 142154020441 in words is "one hundred forty-two billion, one hundred fifty-four million, twenty thousand, four hundred forty-one".