745144 has 16 divisors (see below), whose sum is σ = 1479600. Its totient is φ = 350592.

The previous prime is 745141. The next prime is 745181. The reversal of 745144 is 441547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2604 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (92475).

2⁷⁴⁵¹⁴⁴ is an apocalyptic number.

It is an amenable number.

745144 is a deficient number, since it is larger than the sum of its proper divisors (734456).

745144 is a wasteful number, since it uses less digits than its factorization.

745144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502 (or 5498 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 745144 is about 863.2172380114. The cubic root of 745144 is about 90.6595174101.

The spelling of 745144 in words is "seven hundred forty-five thousand, one hundred forty-four".