1925801 has 2 divisors, whose sum is σ = 1925802. Its totient is φ = 1925800.

The previous prime is 1925779. The next prime is 1925827. The reversal of 1925801 is 1085291.

It is a happy number.

It is an a-pointer prime, because the next prime (1925827) can be obtained adding 1925801 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1651225 + 274576 = 1285^2 + 524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1925801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1925851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962900 + 962901.

It is an arithmetic number, because the mean of its divisors is an integer number (962901).

2^1925801 is an apocalyptic number.

It is an amenable number.

1925801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925801 is an equidigital number, since it uses as much as digits as its factorization.

1925801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1925801 is about 1387.7323228923. The cubic root of 1925801 is about 124.4143483827.

The spelling of 1925801 in words is "one million, nine hundred twenty-five thousand, eight hundred one".