142758549122 has 18 divisors (see below), whose sum is σ = 249105627747. Its totient is φ = 61180632324.

The previous prime is 142758549119. The next prime is 142758549151. The reversal of 142758549122 is 221945857241.

It can be written as a sum of positive squares in only one way, i.e., 71379274561 + 71379274561 = 267169^2 + 267169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=267169.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3721283 + ... + 3759449.

Almost surely, 2^142758549122 is an apocalyptic number.

142758549122 is a deficient number, since it is larger than the sum of its proper divisors (106347078625).

142758549122 is an frugal number, since it uses more digits than its factorization.

142758549122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76350 (or 38176 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

Multiplying 142758549122 by its sum of digits (50), we get a square (7137927456100 = 2671690²).

The spelling of 142758549122 in words is "one hundred forty-two billion, seven hundred fifty-eight million, five hundred forty-nine thousand, one hundred twenty-two".