142351111 has 16 divisors (see below), whose sum is σ = 168791040. Its totient is φ = 117462240.

The previous prime is 142351091. The next prime is 142351123. The reversal of 142351111 is 111153241.

It is not a de Polignac number, because 142351111 - 2⁹ = 142350599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142351511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86680 + ... + 88306.

It is an arithmetic number, because the mean of its divisors is an integer number (10549440).

Almost surely, 2^142351111 is an apocalyptic number.

142351111 is a deficient number, since it is larger than the sum of its proper divisors (26439929).

142351111 is a wasteful number, since it uses less digits than its factorization.

142351111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094.

The product of its digits is 120, while the sum is 19.

The square root of 142351111 is about 11931.0984825371. The cubic root of 142351111 is about 522.1399865797.

The spelling of 142351111 in words is "one hundred forty-two million, three hundred fifty-one thousand, one hundred eleven".