4951831 has 4 divisors (see below), whose sum is σ = 5167152. Its totient is φ = 4736512.

The previous prime is 4951829. The next prime is 4951861. The reversal of 4951831 is 1381594.

4951831 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4951831 - 2¹ = 4951829 is a prime.

It is a super-2 number, since 2×4951831² = 49041260505122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4951793 and 4951802.

It is a congruent 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, 107626 + ... + 107671.

It is an arithmetic number, because the mean of its divisors is an integer number (1291788).

Almost surely, 2^4951831 is an apocalyptic number.

4951831 is a deficient number, since it is larger than the sum of its proper divisors (215321).

4951831 is a wasteful number, since it uses less digits than its factorization.

4951831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215320.

The product of its digits is 4320, while the sum is 31.

The square root of 4951831 is about 2225.2709947330. The cubic root of 4951831 is about 170.4467029259.

The spelling of 4951831 in words is "four million, nine hundred fifty-one thousand, eight hundred thirty-one".