142001137508 has 24 divisors (see below), whose sum is σ = 250192131000. Its totient is φ = 70518060288.

The previous prime is 142001137507. The next prime is 142001137517. The reversal of 142001137508 is 805731100241.

It can be written as a sum of positive squares in 4 ways, for example, as 29066158144 + 112934979364 = 170488^2 + 336058^2 .

It is not an unprimeable number, because it can be changed into a prime (142001137507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452968 + ... + 1547616.

It is an arithmetic number, because the mean of its divisors is an integer number (10424672125).

Almost surely, 2^142001137508 is an apocalyptic number.

It is an amenable number.

142001137508 is a deficient number, since it is larger than the sum of its proper divisors (108190993492).

142001137508 is a wasteful number, since it uses less digits than its factorization.

142001137508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97199 (or 97197 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

Adding to 142001137508 its reverse (805731100241), we get a palindrome (947732237749).

The spelling of 142001137508 in words is "one hundred forty-two billion, one million, one hundred thirty-seven thousand, five hundred eight".