4051951 has 2 divisors, whose sum is σ = 4051952. Its totient is φ = 4051950.

The previous prime is 4051939. The next prime is 4051987. The reversal of 4051951 is 1591504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4051951 - 2¹³ = 4043759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4051991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025975 + 2025976.

It is an arithmetic number, because the mean of its divisors is an integer number (2025976).

Almost surely, 2^4051951 is an apocalyptic number.

4051951 is a deficient number, since it is larger than the sum of its proper divisors (1).

4051951 is an equidigital number, since it uses as much as digits as its factorization.

4051951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 4051951 is about 2012.9458512340. The cubic root of 4051951 is about 159.4243769088.

The spelling of 4051951 in words is "four million, fifty-one thousand, nine hundred fifty-one".