142909256722 has 24 divisors (see below), whose sum is σ = 227900495844. Its totient is φ = 67196712192.

The previous prime is 142909256683. The next prime is 142909256729. The reversal of 142909256722 is 227652909241.

It can be written as a sum of positive squares in 6 ways, for example, as 142756264561 + 152992161 = 377831^2 + 12369^2 .

It is not an unprimeable number, because it can be changed into a prime (142909256729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615048 + ... + 814924.

Almost surely, 2^142909256722 is an apocalyptic number.

142909256722 is a deficient number, since it is larger than the sum of its proper divisors (84991239122).

142909256722 is a wasteful number, since it uses less digits than its factorization.

142909256722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201150 (or 201133 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 142909256722 in words is "one hundred forty-two billion, nine hundred nine million, two hundred fifty-six thousand, seven hundred twenty-two".