142002001540 has 24 divisors (see below), whose sum is σ = 340804804032. Its totient is φ = 48686400480.

The previous prime is 142002001517. The next prime is 142002001567. The reversal of 142002001540 is 45100200241.

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, 507149866 + ... + 507150145.

It is an arithmetic number, because the mean of its divisors is an integer number (14200200168).

Almost surely, 2^142002001540 is an apocalyptic number.

142002001540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142002001540 is an abundant number, since it is smaller than the sum of its proper divisors (198802802492).

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

142002001540 is a wasteful number, since it uses less digits than its factorization.

142002001540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014300027 (or 1014300025 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 142002001540 its reverse (45100200241), we get a palindrome (187102201781).

The spelling of 142002001540 in words is "one hundred forty-two billion, two million, one thousand, five hundred forty".