1925851 has 2 divisors, whose sum is σ = 1925852. Its totient is φ = 1925850.

The previous prime is 1925839. The next prime is 1925857. The reversal of 1925851 is 1585291.

It is a strong prime.

It is an emirp because it is prime and its reverse (1585291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1925851 - 2¹³ = 1917659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1925857) 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 as a sum of consecutive naturals, namely, 962925 + 962926.

It is an arithmetic number, because the mean of its divisors is an integer number (962926).

2^1925851 is an apocalyptic number.

1925851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925851 is an equidigital number, since it uses as much as digits as its factorization.

1925851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 31.

The square root of 1925851 is about 1387.7503377769. The cubic root of 1925851 is about 124.4154251059.

The spelling of 1925851 in words is "one million, nine hundred twenty-five thousand, eight hundred fifty-one".