142251123 has 8 divisors (see below), whose sum is σ = 216763648. Its totient is φ = 81286344.

The previous prime is 142251107. The next prime is 142251133. The reversal of 142251123 is 321152241.

142251123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142251123 - 2⁴ = 142251107 is a prime.

It is a super-2 number, since 2×142251123² = 40470763989522258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6773863 = 142251123 / (1 + 4 + 2 + 2 + 5 + 1 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142251123.

It is not an unprimeable number, because it can be changed into a prime (142251133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3386911 + ... + 3386952.

It is an arithmetic number, because the mean of its divisors is an integer number (27095456).

Almost surely, 2^142251123 is an apocalyptic number.

142251123 is a deficient number, since it is larger than the sum of its proper divisors (74512525).

142251123 is an equidigital number, since it uses as much as digits as its factorization.

142251123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6773873.

The product of its digits is 480, while the sum is 21.

The square root of 142251123 is about 11926.9075203927. The cubic root of 142251123 is about 522.0177068611.

The spelling of 142251123 in words is "one hundred forty-two million, two hundred fifty-one thousand, one hundred twenty-three".