142905247730 has 32 divisors (see below), whose sum is σ = 296578088064. Its totient is φ = 48562488576.

The previous prime is 142905247729. The next prime is 142905247733. The reversal of 142905247730 is 37742509241.

It is not an unprimeable number, because it can be changed into a prime (142905247733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9025292 + ... + 9041111.

It is an arithmetic number, because the mean of its divisors is an integer number (9268065252).

Almost surely, 2^142905247730 is an apocalyptic number.

142905247730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142905247730 is an abundant number, since it is smaller than the sum of its proper divisors (153672840334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142905247730 is a wasteful number, since it uses less digits than its factorization.

142905247730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18066530.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 142905247730 in words is "one hundred forty-two billion, nine hundred five million, two hundred forty-seven thousand, seven hundred thirty".