755043149 has 16 divisors (see below), whose sum is σ = 921372672. Its totient is φ = 604639728.

The previous prime is 755043139. The next prime is 755043187. The reversal of 755043149 is 941340557.

It is not a de Polignac number, because 755043149 - 2²⁰ = 753994573 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755043139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47609 + ... + 61454.

It is an arithmetic number, because the mean of its divisors is an integer number (57585792).

Almost surely, 2^755043149 is an apocalyptic number.

It is an amenable number.

755043149 is a deficient number, since it is larger than the sum of its proper divisors (166329523).

755043149 is a wasteful number, since it uses less digits than its factorization.

755043149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109136.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 755043149 is about 27478.0484932973. The cubic root of 755043149 is about 910.5921955454.

The spelling of 755043149 in words is "seven hundred fifty-five million, forty-three thousand, one hundred forty-nine".