142642500 has 480 divisors, whose sum is σ = 587811840. Its totient is φ = 25920000.

The previous prime is 142642483. The next prime is 142642543. The reversal of 142642500 is 5246241.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 7507491 + ... + 7507509.

It is an arithmetic number, because the mean of its divisors is an integer number (1224608).

Almost surely, 2^142642500 is an apocalyptic number.

142642500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142642500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293905920).

142642500 is an abundant number, since it is smaller than the sum of its proper divisors (445169340).

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

142642500 is a wasteful number, since it uses less digits than its factorization.

142642500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142642500 is about 11943.3035630850. The cubic root of 142642500 is about 522.4960127287.

Adding to 142642500 its reverse (5246241), we get a palindrome (147888741).

The spelling of 142642500 in words is "one hundred forty-two million, six hundred forty-two thousand, five hundred".