2142138 has 16 divisors (see below), whose sum is σ = 4306176. Its totient is φ = 710400.

The previous prime is 2142121. The next prime is 2142149. The reversal of 2142138 is 8312412.

It is a super-2 number, since 2×2142138² = 9177510422088, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538 + ... + 2138.

It is an arithmetic number, because the mean of its divisors is an integer number (269136).

2^2142138 is an apocalyptic number.

2142138 is an abundant number, since it is smaller than the sum of its proper divisors (2164038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142138 is a wasteful number, since it uses less digits than its factorization.

2142138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829.

The product of its digits is 384, while the sum is 21.

The square root of 2142138 is about 1463.6044547623. The cubic root of 2142138 is about 128.9087751167.

The spelling of 2142138 in words is "two million, one hundred forty-two thousand, one hundred thirty-eight".