129014042 has 8 divisors (see below), whose sum is σ = 198751476. Its totient is φ = 62763552.

The previous prime is 129014027. The next prime is 129014057. The reversal of 129014042 is 240410921.

It is an interprime number because it is at equal distance from previous prime (129014027) and next prime (129014057).

It can be written as a sum of positive squares in 2 ways, for example, as 111112681 + 17901361 = 10541^2 + 4231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 129013999 and 129014017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871643 + ... + 871790.

Almost surely, 2^129014042 is an apocalyptic number.

129014042 is a deficient number, since it is larger than the sum of its proper divisors (69737434).

129014042 is a wasteful number, since it uses less digits than its factorization.

129014042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743472.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 129014042 is about 11358.4348393606. The cubic root of 129014042 is about 505.2957676622.

Adding to 129014042 its reverse (240410921), we get a palindrome (369424963).

The spelling of 129014042 in words is "one hundred twenty-nine million, fourteen thousand, forty-two".