42707145 has 48 divisors (see below), whose sum is σ = 78423552. Its totient is φ = 19768320.

The previous prime is 42707101. The next prime is 42707153. The reversal of 42707145 is 54170724.

It is not a de Polignac number, because 42707145 - 2¹¹ = 42705097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42600 + ... + 43590.

It is an arithmetic number, because the mean of its divisors is an integer number (1633824).

Almost surely, 2^42707145 is an apocalyptic number.

It is an amenable number.

42707145 is a deficient number, since it is larger than the sum of its proper divisors (35716407).

42707145 is a wasteful number, since it uses less digits than its factorization.

42707145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 42707145 is about 6535.0703898275. The cubic root of 42707145 is about 349.5426543466.

Adding to 42707145 its reverse (54170724), we get a palindrome (96877869).

The spelling of 42707145 in words is "forty-two million, seven hundred seven thousand, one hundred forty-five".