1025311 has 8 divisors (see below), whose sum is σ = 1188864. Its totient is φ = 866040.

The previous prime is 1025303. The next prime is 1025327. The reversal of 1025311 is 1135201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1025311 - 2³ = 1025303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1025291 and 1025300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025351) 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 7 ways as a sum of consecutive naturals, for example, 535 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (148608).

2^1025311 is an apocalyptic number.

1025311 is a deficient number, since it is larger than the sum of its proper divisors (163553).

1025311 is an equidigital number, since it uses as much as digits as its factorization.

1025311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1025311 is about 1012.5764168694. The cubic root of 1025311 is about 100.8366801400.

The spelling of 1025311 in words is "one million, twenty-five thousand, three hundred eleven".