142401434 has 16 divisors (see below), whose sum is σ = 247556736. Its totient is φ = 60169200.

The previous prime is 142401421. The next prime is 142401439. The reversal of 142401434 is 434104241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142401439) by changing a digit.

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, 70637 + ... + 72624.

It is an arithmetic number, because the mean of its divisors is an integer number (15472296).

Almost surely, 2^142401434 is an apocalyptic number.

142401434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142401434 is a deficient number, since it is larger than the sum of its proper divisors (105155302).

142401434 is a wasteful number, since it uses less digits than its factorization.

142401434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143341.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 142401434 is about 11933.2071967263. The cubic root of 142401434 is about 522.2015071273.

Adding to 142401434 its reverse (434104241), we get a palindrome (576505675).

The spelling of 142401434 in words is "one hundred forty-two million, four hundred one thousand, four hundred thirty-four".