142257217841 has 8 divisors (see below), whose sum is σ = 146950425600. Its totient is φ = 137570526720.

The previous prime is 142257217831. The next prime is 142257217859. The reversal of 142257217841 is 148712752241.

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 142257217841 - 2⁶ = 142257217777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142257217792 and 142257217801.

It is not an unprimeable number, because it can be changed into a prime (142257217801) 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, 1584761 + ... + 1672118.

It is an arithmetic number, because the mean of its divisors is an integer number (18368803200).

Almost surely, 2^142257217841 is an apocalyptic number.

It is an amenable number.

142257217841 is a deficient number, since it is larger than the sum of its proper divisors (4693207759).

142257217841 is a wasteful number, since it uses less digits than its factorization.

142257217841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258319.

The product of its digits is 250880, while the sum is 44.

The spelling of 142257217841 in words is "one hundred forty-two billion, two hundred fifty-seven million, two hundred seventeen thousand, eight hundred forty-one".