54142242146 has 4 divisors (see below), whose sum is σ = 81213363222. Its totient is φ = 27071121072.

The previous prime is 54142242137. The next prime is 54142242149. The reversal of 54142242146 is 64124224145.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54051135121 + 91107025 = 232489^2 + 9545^2 .

It is not an unprimeable number, because it can be changed into a prime (54142242149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13535560535 + ... + 13535560538.

Almost surely, 2^54142242146 is an apocalyptic number.

54142242146 is a deficient number, since it is larger than the sum of its proper divisors (27071121076).

54142242146 is a wasteful number, since it uses less digits than its factorization.

54142242146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27071121075.

The product of its digits is 61440, while the sum is 35.

The spelling of 54142242146 in words is "fifty-four billion, one hundred forty-two million, two hundred forty-two thousand, one hundred forty-six".