4137945 has 16 divisors (see below), whose sum is σ = 7566720. Its totient is φ = 1891584.

The previous prime is 4137929. The next prime is 4137949. The reversal of 4137945 is 5497314.

It is not a de Polignac number, because 4137945 - 2⁴ = 4137929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4137949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19600 + ... + 19809.

It is an arithmetic number, because the mean of its divisors is an integer number (472920).

Almost surely, 2^4137945 is an apocalyptic number.

It is an amenable number.

4137945 is a deficient number, since it is larger than the sum of its proper divisors (3428775).

4137945 is a wasteful number, since it uses less digits than its factorization.

4137945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39424.

The product of its digits is 15120, while the sum is 33.

The square root of 4137945 is about 2034.1939435560. The cubic root of 4137945 is about 160.5443050793.

The spelling of 4137945 in words is "four million, one hundred thirty-seven thousand, nine hundred forty-five".