142382121 has 16 divisors (see below), whose sum is σ = 226397184. Its totient is φ = 77823504.

The previous prime is 142382087. The next prime is 142382161. The reversal of 142382121 is 121283241.

It is not a de Polignac number, because 142382121 - 2¹⁵ = 142349353 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142382091 and 142382100.

It is not an unprimeable number, because it can be changed into a prime (142382161) 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, 146911 + ... + 147876.

It is an arithmetic number, because the mean of its divisors is an integer number (14149824).

Almost surely, 2^142382121 is an apocalyptic number.

It is an amenable number.

142382121 is a deficient number, since it is larger than the sum of its proper divisors (84015063).

142382121 is a wasteful number, since it uses less digits than its factorization.

142382121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294820.

The product of its digits is 768, while the sum is 24.

The square root of 142382121 is about 11932.3979568233. The cubic root of 142382121 is about 522.1778984379.

The spelling of 142382121 in words is "one hundred forty-two million, three hundred eighty-two thousand, one hundred twenty-one".