10181851 has 2 divisors, whose sum is σ = 10181852. Its totient is φ = 10181850.

The previous prime is 10181849. The next prime is 10181863. The reversal of 10181851 is 15818101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10181851 - 2¹ = 10181849 is a prime.

Together with 10181849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10181881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5090925 + 5090926.

It is an arithmetic number, because the mean of its divisors is an integer number (5090926).

Almost surely, 2^10181851 is an apocalyptic number.

10181851 is a deficient number, since it is larger than the sum of its proper divisors (1).

10181851 is an equidigital number, since it uses as much as digits as its factorization.

10181851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 25.

The square root of 10181851 is about 3190.9012833367. The cubic root of 10181851 is about 216.7415854001.

Adding to 10181851 its reverse (15818101), we get a palindrome (25999952).

The spelling of 10181851 in words is "ten million, one hundred eighty-one thousand, eight hundred fifty-one".