745149 has 8 divisors (see below), whose sum is σ = 1000800. Its totient is φ = 493136.

The previous prime is 745141. The next prime is 745181. The reversal of 745149 is 941547.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 745149 - 2³ = 745141 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

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 7 ways as a sum of consecutive naturals, for example, 387 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (125100).

2⁷⁴⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

745149 is a deficient number, since it is larger than the sum of its proper divisors (255651).

745149 is a wasteful number, since it uses less digits than its factorization.

745149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819.

The product of its digits is 5040, while the sum is 30.

The square root of 745149 is about 863.2201341489. The cubic root of 745149 is about 90.6597201882.

The spelling of 745149 in words is "seven hundred forty-five thousand, one hundred forty-nine".