1214142142 has 16 divisors (see below), whose sum is σ = 2029836240. Its totient is φ = 541289088.

The previous prime is 1214142133. The next prime is 1214142157. The reversal of 1214142142 is 2412414121.

It is a super-2 number, since 2×1214142142² = 2948282281960696328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939093 + ... + 940384.

It is an arithmetic number, because the mean of its divisors is an integer number (126864765).

Almost surely, 2^1214142142 is an apocalyptic number.

1214142142 is a deficient number, since it is larger than the sum of its proper divisors (815694098).

1214142142 is a wasteful number, since it uses less digits than its factorization.

1214142142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879515.

The product of its digits is 512, while the sum is 22.

The square root of 1214142142 is about 34844.5424995077. The cubic root of 1214142142 is about 1066.8167956441.

Adding to 1214142142 its reverse (2412414121), we get a palindrome (3626556263).

The spelling of 1214142142 in words is "one billion, two hundred fourteen million, one hundred forty-two thousand, one hundred forty-two".