1421110142 has 16 divisors (see below), whose sum is σ = 2252093760. Its totient is φ = 671455008.

The previous prime is 1421110127. The next prime is 1421110151. The reversal of 1421110142 is 2410111241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421110142.

It is a congruent number.

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, 257933 + ... + 263384.

It is an arithmetic number, because the mean of its divisors is an integer number (140755860).

Almost surely, 2^1421110142 is an apocalyptic number.

1421110142 is a deficient number, since it is larger than the sum of its proper divisors (830983618).

1421110142 is a wasteful number, since it uses less digits than its factorization.

1421110142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521395.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1421110142 is about 37697.6145399149. The cubic root of 1421110142 is about 1124.2836966419.

Adding to 1421110142 its reverse (2410111241), we get a palindrome (3831221383).

The spelling of 1421110142 in words is "one billion, four hundred twenty-one million, one hundred ten thousand, one hundred forty-two".