142054117 has 2 divisors, whose sum is σ = 142054118. Its totient is φ = 142054116.

The previous prime is 142054109. The next prime is 142054147. The reversal of 142054117 is 711450241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140801956 + 1252161 = 11866^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 142054117 - 2³ = 142054109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142054091 and 142054100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142054147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71027058 + 71027059.

It is an arithmetic number, because the mean of its divisors is an integer number (71027059).

Almost surely, 2^142054117 is an apocalyptic number.

It is an amenable number.

142054117 is a deficient number, since it is larger than the sum of its proper divisors (1).

142054117 is an equidigital number, since it uses as much as digits as its factorization.

142054117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 142054117 is about 11918.6457703885. The cubic root of 142054117 is about 521.7766117939.

The spelling of 142054117 in words is "one hundred forty-two million, fifty-four thousand, one hundred seventeen".