42134331 has 4 divisors (see below), whose sum is σ = 56179112. Its totient is φ = 28089552.

The previous prime is 42134317. The next prime is 42134333. The reversal of 42134331 is 13343124.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-42134331 is a prime.

It is a super-2 number, since 2×42134331² = 3550603697635122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42134298 and 42134307.

It is not an unprimeable number, because it can be changed into a prime (42134333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7022386 + ... + 7022391.

It is an arithmetic number, because the mean of its divisors is an integer number (14044778).

Almost surely, 2^42134331 is an apocalyptic number.

42134331 is a deficient number, since it is larger than the sum of its proper divisors (14044781).

42134331 is a wasteful number, since it uses less digits than its factorization.

42134331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14044780.

The product of its digits is 864, while the sum is 21.

The square root of 42134331 is about 6491.0962864527. The cubic root of 42134331 is about 347.9728559222.

Adding to 42134331 its reverse (13343124), we get a palindrome (55477455).

The spelling of 42134331 in words is "forty-two million, one hundred thirty-four thousand, three hundred thirty-one".