142211214 has 40 divisors (see below), whose sum is σ = 320078880. Its totient is φ = 47192544.

The previous prime is 142211203. The next prime is 142211249. The reversal of 142211214 is 412112241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36882 + ... + 40554.

It is an arithmetic number, because the mean of its divisors is an integer number (8001972).

Almost surely, 2^142211214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142211214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160039440).

142211214 is an abundant number, since it is smaller than the sum of its proper divisors (177867666).

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

142211214 is a wasteful number, since it uses less digits than its factorization.

142211214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926 (or 3917 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 142211214 is about 11925.2343373202. The cubic root of 142211214 is about 521.9688843918.

Adding to 142211214 its reverse (412112241), we get a palindrome (554323455).

The spelling of 142211214 in words is "one hundred forty-two million, two hundred eleven thousand, two hundred fourteen".