4951851 has 4 divisors (see below), whose sum is σ = 6602472. Its totient is φ = 3301232.

The previous prime is 4951829. The next prime is 4951861. The reversal of 4951851 is 1581594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4951851 - 2⁵ = 4951819 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4951861) 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, 825306 + ... + 825311.

It is an arithmetic number, because the mean of its divisors is an integer number (1650618).

Almost surely, 2^4951851 is an apocalyptic number.

4951851 is a deficient number, since it is larger than the sum of its proper divisors (1650621).

4951851 is a wasteful number, since it uses less digits than its factorization.

4951851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650620.

The product of its digits is 7200, while the sum is 33.

The square root of 4951851 is about 2225.2754885632. The cubic root of 4951851 is about 170.4469323986.

It can be divided in two parts, 495 and 1851, that added together give a triangular number (2346 = T₆₈).

The spelling of 4951851 in words is "four million, nine hundred fifty-one thousand, eight hundred fifty-one".