142121214 has 12 divisors (see below), whose sum is σ = 307929336. Its totient is φ = 47373732.

The previous prime is 142121179. The next prime is 142121219. The reversal of 142121214 is 412121241.

142121214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7895623 = 142121214 / (1 + 4 + 2 + 1 + 2 + 1 + 2 + 1 + 4).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142121219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3947794 + ... + 3947829.

It is an arithmetic number, because the mean of its divisors is an integer number (25660778).

Almost surely, 2^142121214 is an apocalyptic number.

142121214 is an abundant number, since it is smaller than the sum of its proper divisors (165808122).

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

142121214 is a wasteful number, since it uses less digits than its factorization.

142121214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895631 (or 7895628 counting only the distinct ones).

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

The square root of 142121214 is about 11921.4602293511. The cubic root of 142121214 is about 521.8587498209.

Adding to 142121214 its reverse (412121241), we get a palindrome (554242455).

The spelling of 142121214 in words is "one hundred forty-two million, one hundred twenty-one thousand, two hundred fourteen".