1020075 has 48 divisors (see below), whose sum is σ = 2023680. Its totient is φ = 443520.

The previous prime is 1020059. The next prime is 1020077. The reversal of 1020075 is 5700201.

It is a happy number.

It is not a de Polignac number, because 1020075 - 2⁴ = 1020059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1020077) 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 47 ways as a sum of consecutive naturals, for example, 15192 + ... + 15258.

It is an arithmetic number, because the mean of its divisors is an integer number (42160).

2^1020075 is an apocalyptic number.

1020075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020075 is a deficient number, since it is larger than the sum of its proper divisors (1003605).

1020075 is a wasteful number, since it uses less digits than its factorization.

1020075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 1020075 is about 1009.9876236865. The cubic root of 1020075 is about 100.6647381081.

Adding to 1020075 its reverse (5700201), we get a palindrome (6720276).

The spelling of 1020075 in words is "one million, twenty thousand, seventy-five".