142975756 has 48 divisors (see below), whose sum is σ = 316270080. Its totient is φ = 54933120.

The previous prime is 142975747. The next prime is 142975757. The reversal of 142975756 is 657579241.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (142975757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19305 + ... + 25663.

It is an arithmetic number, because the mean of its divisors is an integer number (6588960).

Almost surely, 2^142975756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142975756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158135040).

142975756 is an abundant number, since it is smaller than the sum of its proper divisors (173294324).

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

142975756 is a wasteful number, since it uses less digits than its factorization.

142975756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454 (or 6452 counting only the distinct ones).

The product of its digits is 529200, while the sum is 46.

The square root of 142975756 is about 11957.2470075683. The cubic root of 142975756 is about 522.9025991344.

The spelling of 142975756 in words is "one hundred forty-two million, nine hundred seventy-five thousand, seven hundred fifty-six".