1012245 has 32 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 478464.

The previous prime is 1012241. The next prime is 1012259. The reversal of 1012245 is 5422101.

1012245 = T₃₈ + T₃₉ + ... + T₁₈₂.

It is not a de Polignac number, because 1012245 - 2² = 1012241 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012241) 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 31 ways as a sum of consecutive naturals, for example, 5566 + ... + 5744.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2^1012245 is an apocalyptic number.

1012245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012245 is a deficient number, since it is larger than the sum of its proper divisors (802155).

1012245 is a wasteful number, since it uses less digits than its factorization.

1012245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1012245 is about 1006.1038713771. The cubic root of 1012245 is about 100.4065119081.

Adding to 1012245 its reverse (5422101), we get a palindrome (6434346).

It can be divided in two parts, 101 and 2245, that added together give a triangular number (2346 = T₆₈).

The spelling of 1012245 in words is "one million, twelve thousand, two hundred forty-five".