142221461254 has 16 divisors (see below), whose sum is σ = 224679193200. Its totient is φ = 67332363264.

The previous prime is 142221461227. The next prime is 142221461257. The reversal of 142221461254 is 452164122241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142221461257) 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, 918867 + ... + 1062430.

It is an arithmetic number, because the mean of its divisors is an integer number (14042449575).

Almost surely, 2^142221461254 is an apocalyptic number.

142221461254 is a deficient number, since it is larger than the sum of its proper divisors (82457731946).

142221461254 is a wasteful number, since it uses less digits than its factorization.

142221461254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983207.

The product of its digits is 30720, while the sum is 34.

Adding to 142221461254 its reverse (452164122241), we get a palindrome (594385583495).

The spelling of 142221461254 in words is "one hundred forty-two billion, two hundred twenty-one million, four hundred sixty-one thousand, two hundred fifty-four".