134020042 has 12 divisors (see below), whose sum is σ = 217683990. Its totient is φ = 61855248.

The previous prime is 134020039. The next prime is 134020063. The reversal of 134020042 is 240020431.

It can be written as a sum of positive squares in 3 ways, for example, as 58660281 + 75359761 = 7659^2 + 8681^2 .

It is a super-2 number, since 2×134020042² = 35922743315363528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 134019998 and 134020025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197917 + ... + 198592.

Almost surely, 2^134020042 is an apocalyptic number.

134020042 is a deficient number, since it is larger than the sum of its proper divisors (83663948).

134020042 is a wasteful number, since it uses less digits than its factorization.

134020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396537 (or 396524 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 134020042 is about 11576.7025529725. The cubic root of 134020042 is about 511.7485057384.

Adding to 134020042 its reverse (240020431), we get a palindrome (374040473).

The spelling of 134020042 in words is "one hundred thirty-four million, twenty thousand, forty-two".