142243514 has 16 divisors (see below), whose sum is σ = 249794496. Its totient is φ = 59474400.

The previous prime is 142243511. The next prime is 142243537. The reversal of 142243514 is 415342241.

It is not an unprimeable number, because it can be changed into a prime (142243511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123332 + ... + 124479.

It is an arithmetic number, because the mean of its divisors is an integer number (15612156).

Almost surely, 2^142243514 is an apocalyptic number.

142243514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142243514 is a deficient number, since it is larger than the sum of its proper divisors (107550982).

142243514 is a wasteful number, since it uses less digits than its factorization.

142243514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247861.

The product of its digits is 3840, while the sum is 26.

The square root of 142243514 is about 11926.5885315123. The cubic root of 142243514 is about 522.0083991348.

Adding to 142243514 its reverse (415342241), we get a palindrome (557585755).

The spelling of 142243514 in words is "one hundred forty-two million, two hundred forty-three thousand, five hundred fourteen".