142220051454 has 96 divisors (see below), whose sum is σ = 338311192320. Its totient is φ = 39654261504.

The previous prime is 142220051353. The next prime is 142220051461. The reversal of 142220051454 is 454150022241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 282642 + ... + 603594.

It is an arithmetic number, because the mean of its divisors is an integer number (3524074920).

Almost surely, 2^142220051454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142220051454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169155596160).

142220051454 is an abundant number, since it is smaller than the sum of its proper divisors (196091140866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142220051454 is a wasteful number, since it uses less digits than its factorization.

142220051454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321026 (or 321013 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 142220051454 its reverse (454150022241), we get a palindrome (596370073695).

The spelling of 142220051454 in words is "one hundred forty-two billion, two hundred twenty million, fifty-one thousand, four hundred fifty-four".