142540535240 has 32 divisors (see below), whose sum is σ = 320781195000. Its totient is φ = 57004660224.

The previous prime is 142540535209. The next prime is 142540535257. The reversal of 142540535240 is 42535045241.

It can be written as a sum of positive squares in 4 ways, for example, as 93781712644 + 48758822596 = 306238^2 + 220814^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142540535240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159815 + ... + 557334.

Almost surely, 2^142540535240 is an apocalyptic number.

142540535240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142540535240 is an abundant number, since it is smaller than the sum of its proper divisors (178240659760).

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

142540535240 is a wasteful number, since it uses less digits than its factorization.

142540535240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722129 (or 722125 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 142540535240 in words is "one hundred forty-two billion, five hundred forty million, five hundred thirty-five thousand, two hundred forty".