42134465 has 4 divisors (see below), whose sum is σ = 50561364. Its totient is φ = 33707568.

The previous prime is 42134431. The next prime is 42134467. The reversal of 42134465 is 56443124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 34000561 = 2852^2 + 5831^2 .

It is a cyclic number.

It is not a de Polignac number, because 42134465 - 2⁶ = 42134401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42134467) 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, 4213442 + ... + 4213451.

It is an arithmetic number, because the mean of its divisors is an integer number (12640341).

Almost surely, 2^42134465 is an apocalyptic number.

It is an amenable number.

42134465 is a deficient number, since it is larger than the sum of its proper divisors (8426899).

42134465 is an equidigital number, since it uses as much as digits as its factorization.

42134465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8426898.

The product of its digits is 11520, while the sum is 29.

The square root of 42134465 is about 6491.1066082757. The cubic root of 42134465 is about 347.9732248083.

Adding to 42134465 its reverse (56443124), we get a palindrome (98577589).

The spelling of 42134465 in words is "forty-two million, one hundred thirty-four thousand, four hundred sixty-five".