4157065 has 8 divisors (see below), whose sum is σ = 5442048. Its totient is φ = 3023280.

The previous prime is 4157053. The next prime is 4157077. The reversal of 4157065 is 5607514.

It is an interprime number because it is at equal distance from previous prime (4157053) and next prime (4157077).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4157065 - 2⁷ = 4156937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37737 + ... + 37846.

It is an arithmetic number, because the mean of its divisors is an integer number (680256).

Almost surely, 2^4157065 is an apocalyptic number.

It is an amenable number.

4157065 is a deficient number, since it is larger than the sum of its proper divisors (1284983).

4157065 is a wasteful number, since it uses less digits than its factorization.

4157065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75599.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 4157065 is about 2038.8881774143. Note that the first 3 decimals coincide. The cubic root of 4157065 is about 160.7911982716.

The spelling of 4157065 in words is "four million, one hundred fifty-seven thousand, sixty-five".