142755730 has 16 divisors (see below), whose sum is σ = 276726744. Its totient is φ = 52709760.

The previous prime is 142755709. The next prime is 142755757. The reversal of 142755730 is 37557241.

142755730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 118657449 + 24098281 = 10893^2 + 4909^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548931 + ... + 549190.

Almost surely, 2^142755730 is an apocalyptic number.

142755730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142755730 is a deficient number, since it is larger than the sum of its proper divisors (133971014).

142755730 is a wasteful number, since it uses less digits than its factorization.

142755730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098141.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 142755730 is about 11948.0429359791. The cubic root of 142755730 is about 522.6342290762.

The spelling of 142755730 in words is "one hundred forty-two million, seven hundred fifty-five thousand, seven hundred thirty".