142928907 has 16 divisors (see below), whose sum is σ = 215066880. Its totient is φ = 83636000.

The previous prime is 142928897. The next prime is 142928909. The reversal of 142928907 is 709829241.

It is not a de Polignac number, because 142928907 - 2¹⁵ = 142896139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142928909) 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 15 ways as a sum of consecutive naturals, for example, 73719 + ... + 75632.

It is an arithmetic number, because the mean of its divisors is an integer number (13441680).

Almost surely, 2^142928907 is an apocalyptic number.

142928907 is a deficient number, since it is larger than the sum of its proper divisors (72137973).

142928907 is a wasteful number, since it uses less digits than its factorization.

142928907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149394.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 142928907 is about 11955.2878258953. The cubic root of 142928907 is about 522.8454795669.

The spelling of 142928907 in words is "one hundred forty-two million, nine hundred twenty-eight thousand, nine hundred seven".