142381851 has 16 divisors (see below), whose sum is σ = 207943200. Its totient is φ = 86256128.

The previous prime is 142381829. The next prime is 142381861. The reversal of 142381851 is 158183241.

142381851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 142381851 - 2¹³ = 142373659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142381861) 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, 46656 + ... + 49613.

It is an arithmetic number, because the mean of its divisors is an integer number (12996450).

Almost surely, 2^142381851 is an apocalyptic number.

142381851 is a deficient number, since it is larger than the sum of its proper divisors (65561349).

142381851 is a wasteful number, since it uses less digits than its factorization.

142381851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96318.

The product of its digits is 7680, while the sum is 33.

The square root of 142381851 is about 11932.3866430819. The cubic root of 142381851 is about 522.1775683680.

The spelling of 142381851 in words is "one hundred forty-two million, three hundred eighty-one thousand, eight hundred fifty-one".