4007161 has 4 divisors (see below), whose sum is σ = 4013712. Its totient is φ = 4000612.

The previous prime is 4007149. The next prime is 4007183. The reversal of 4007161 is 1617004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4007161 - 2⁷ = 4007033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4007131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2251 + ... + 3616.

It is an arithmetic number, because the mean of its divisors is an integer number (1003428).

Almost surely, 2^4007161 is an apocalyptic number.

It is an amenable number.

4007161 is a deficient number, since it is larger than the sum of its proper divisors (6551).

4007161 is an equidigital number, since it uses as much as digits as its factorization.

4007161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 4007161 is about 2001.7894494677. The cubic root of 4007161 is about 158.8347768817.

The spelling of 4007161 in words is "four million, seven thousand, one hundred sixty-one".