1025019 has 6 divisors (see below), whose sum is σ = 1480596. Its totient is φ = 683340.

The previous prime is 1025009. The next prime is 1025021. The reversal of 1025019 is 9105201.

It is not a de Polignac number, because 1025019 - 2⁵ = 1024987 is a prime.

It is a super-2 number, since 2×1025019² = 2101327900722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1024992 and 1025010.

It is not an unprimeable number, because it can be changed into a prime (1025009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56937 + ... + 56954.

It is an arithmetic number, because the mean of its divisors is an integer number (246766).

2^1025019 is an apocalyptic number.

1025019 is a deficient number, since it is larger than the sum of its proper divisors (455577).

1025019 is a wasteful number, since it uses less digits than its factorization.

1025019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113897 (or 113894 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1025019 is about 1012.4322199535. The cubic root of 1025019 is about 100.8271067500.

The spelling of 1025019 in words is "one million, twenty-five thousand, nineteen".