741534509 has 4 divisors (see below), whose sum is σ = 785154204. Its totient is φ = 697914816.

The previous prime is 741534481. The next prime is 741534517. The reversal of 741534509 is 905435147.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307020484 + 434514025 = 17522^2 + 20845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-741534509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741534809) 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, 21809822 + ... + 21809855.

It is an arithmetic number, because the mean of its divisors is an integer number (196288551).

Almost surely, 2^741534509 is an apocalyptic number.

It is an amenable number.

741534509 is a deficient number, since it is larger than the sum of its proper divisors (43619695).

741534509 is a wasteful number, since it uses less digits than its factorization.

741534509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43619694.

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

The square root of 741534509 is about 27231.1312471590. The cubic root of 741534509 is about 905.1289496059.

The spelling of 741534509 in words is "seven hundred forty-one million, five hundred thirty-four thousand, five hundred nine".