142775750 has 64 divisors (see below), whose sum is σ = 290594304. Its totient is φ = 52214400.

The previous prime is 142775749. The next prime is 142775753. The reversal of 142775750 is 57577241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142775753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 640139 + ... + 640361.

It is an arithmetic number, because the mean of its divisors is an integer number (4540536).

Almost surely, 2^142775750 is an apocalyptic number.

142775750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142775750 is an abundant number, since it is smaller than the sum of its proper divisors (147818554).

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

142775750 is a wasteful number, since it uses less digits than its factorization.

142775750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 142775750 is about 11948.8807007184. The cubic root of 142775750 is about 522.6586592648.

It can be divided in two parts, 1427 and 75750, that added together give a palindrome (77177).

The spelling of 142775750 in words is "one hundred forty-two million, seven hundred seventy-five thousand, seven hundred fifty".