745512 has 16 divisors (see below), whose sum is σ = 1863840. Its totient is φ = 248496.

The previous prime is 745477. The next prime is 745517. The reversal of 745512 is 215547.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 31063 = 745512 / (7 + 4 + 5 + 5 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (745517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15508 + ... + 15555.

It is an arithmetic number, because the mean of its divisors is an integer number (116490).

2⁷⁴⁵⁵¹² is an apocalyptic number.

It is an amenable number.

745512 is an abundant number, since it is smaller than the sum of its proper divisors (1118328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745512 is a wasteful number, since it uses less digits than its factorization.

745512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31072 (or 31068 counting only the distinct ones).

The product of its digits is 1400, while the sum is 24.

The square root of 745512 is about 863.4303677773. The cubic root of 745512 is about 90.6744394528.

The spelling of 745512 in words is "seven hundred forty-five thousand, five hundred twelve".