1012545 has 12 divisors (see below), whose sum is σ = 1755156. Its totient is φ = 540000.

The previous prime is 1012523. The next prime is 1012547. The reversal of 1012545 is 5452101.

It can be written as a sum of positive squares in 2 ways, for example, as 804609 + 207936 = 897^2 + 456^2 .

It is not a de Polignac number, because 1012545 - 2⁵ = 1012513 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1012547) 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 11 ways as a sum of consecutive naturals, for example, 11206 + ... + 11295.

It is an arithmetic number, because the mean of its divisors is an integer number (146263).

2^1012545 is an apocalyptic number.

1012545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012545 is a deficient number, since it is larger than the sum of its proper divisors (742611).

1012545 is a wasteful number, since it uses less digits than its factorization.

1012545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22512 (or 22509 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1012545 is about 1006.2529503062. The cubic root of 1012545 is about 100.4164301191.

Adding to 1012545 its reverse (5452101), we get a palindrome (6464646).

It can be divided in two parts, 10125 and 45, that multiplied together give a square (455625 = 675²).

The spelling of 1012545 in words is "one million, twelve thousand, five hundred forty-five".