142131400 has 96 divisors (see below), whose sum is σ = 351986400. Its totient is φ = 53222400.

The previous prime is 142131397. The next prime is 142131427. The reversal of 142131400 is 4131241.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429235 + ... + 429565.

It is an arithmetic number, because the mean of its divisors is an integer number (3666525).

Almost surely, 2^142131400 is an apocalyptic number.

142131400 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 142131400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175993200).

142131400 is an abundant number, since it is smaller than the sum of its proper divisors (209855000).

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

142131400 is a wasteful number, since it uses less digits than its factorization.

142131400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 142131400 is about 11921.8874344627. The cubic root of 142131400 is about 521.8712169398.

Adding to 142131400 its reverse (4131241), we get a palindrome (146262641).

The spelling of 142131400 in words is "one hundred forty-two million, one hundred thirty-one thousand, four hundred".