745012 has 6 divisors (see below), whose sum is σ = 1303778. Its totient is φ = 372504.

The previous prime is 745001. The next prime is 745013. The reversal of 745012 is 210547.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 98596 = 804^2 + 314^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745013) by changing a digit.

745012 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 93123 + ... + 93130.

2⁷⁴⁵⁰¹² is an apocalyptic number.

It is an amenable number.

745012 is a deficient number, since it is larger than the sum of its proper divisors (558766).

745012 is a wasteful number, since it uses less digits than its factorization.

745012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186257 (or 186255 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 745012 is about 863.1407764670. The cubic root of 745012 is about 90.6541637411.

Adding to 745012 its reverse (210547), we get a palindrome (955559).

The spelling of 745012 in words is "seven hundred forty-five thousand, twelve".