1012355 has 4 divisors (see below), whose sum is σ = 1214832. Its totient is φ = 809880.

The previous prime is 1012321. The next prime is 1012369. The reversal of 1012355 is 5532101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5532101 = 2237 ⋅2473.

It is not a de Polignac number, because 1012355 - 2¹⁰ = 1011331 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 101231 + ... + 101240.

It is an arithmetic number, because the mean of its divisors is an integer number (303708).

2^1012355 is an apocalyptic number.

1012355 is a deficient number, since it is larger than the sum of its proper divisors (202477).

1012355 is an equidigital number, since it uses as much as digits as its factorization.

1012355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202476.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1012355 is about 1006.1585362158. The cubic root of 1012355 is about 100.4101488130.

Adding to 1012355 its reverse (5532101), we get a palindrome (6544456).

The spelling of 1012355 in words is "one million, twelve thousand, three hundred fifty-five".