142002540251 has 128 divisors (see below), whose sum is σ = 188886297600. Its totient is φ = 104695234560.

The previous prime is 142002540203. The next prime is 142002540259. The reversal of 142002540251 is 152045200241.

It is a cyclic number.

It is not a de Polignac number, because 142002540251 - 2⁶ = 142002540187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142002540251.

It is not an unprimeable number, because it can be changed into a prime (142002540259) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 421372355 + ... + 421372691.

It is an arithmetic number, because the mean of its divisors is an integer number (1475674200).

Almost surely, 2^142002540251 is an apocalyptic number.

142002540251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142002540251 is a deficient number, since it is larger than the sum of its proper divisors (46883757349).

142002540251 is a wasteful number, since it uses less digits than its factorization.

142002540251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 142002540251 its reverse (152045200241), we get a palindrome (294047740492).

The spelling of 142002540251 in words is "one hundred forty-two billion, two million, five hundred forty thousand, two hundred fifty-one".