4165951 has 2 divisors, whose sum is σ = 4165952. Its totient is φ = 4165950.

The previous prime is 4165949. The next prime is 4165957. The reversal of 4165951 is 1595614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4165951 - 2¹ = 4165949 is a prime.

Together with 4165949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4165957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2082975 + 2082976.

It is an arithmetic number, because the mean of its divisors is an integer number (2082976).

Almost surely, 2^4165951 is an apocalyptic number.

4165951 is a deficient number, since it is larger than the sum of its proper divisors (1).

4165951 is an equidigital number, since it uses as much as digits as its factorization.

4165951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 4165951 is about 2041.0661429753. The cubic root of 4165951 is about 160.9056839925.

The spelling of 4165951 in words is "four million, one hundred sixty-five thousand, nine hundred fifty-one".