1025801 has 4 divisors (see below), whose sum is σ = 1172352. Its totient is φ = 879252.

The previous prime is 1025789. The next prime is 1025803. The reversal of 1025801 is 1085201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1085201 = 13 ⋅83477.

It is a cyclic number.

It is not a de Polignac number, because 1025801 - 2¹⁴ = 1009417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025801.

It is not an unprimeable number, because it can be changed into a prime (1025803) 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 in 3 ways as a sum of consecutive naturals, for example, 73265 + ... + 73278.

It is an arithmetic number, because the mean of its divisors is an integer number (293088).

2^1025801 is an apocalyptic number.

It is an amenable number.

1025801 is a deficient number, since it is larger than the sum of its proper divisors (146551).

1025801 is an equidigital number, since it uses as much as digits as its factorization.

1025801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146550.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1025801 is about 1012.8183450155. The cubic root of 1025801 is about 100.8527409918.

The spelling of 1025801 in words is "one million, twenty-five thousand, eight hundred one".