1020146 has 4 divisors (see below), whose sum is σ = 1530222. Its totient is φ = 510072.

The previous prime is 1020143. The next prime is 1020157. The reversal of 1020146 is 6410201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 978121 + 42025 = 989^2 + 205^2 .

It is a super-2 number, since 2×1020146² = 2081395722632, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020146.

It is not an unprimeable number, because it can be changed into a prime (1020143) 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, 255035 + ... + 255038.

2^1020146 is an apocalyptic number.

1020146 is a deficient number, since it is larger than the sum of its proper divisors (510076).

1020146 is an equidigital number, since it uses as much as digits as its factorization.

1020146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510075.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1020146 is about 1010.0227720205. The cubic root of 1020146 is about 100.6670735673.

Adding to 1020146 its reverse (6410201), we get a palindrome (7430347).

The spelling of 1020146 in words is "one million, twenty thousand, one hundred forty-six".