741085561 has 4 divisors (see below), whose sum is σ = 751237492.
Its totient is φ = 730933632.
The previous prime is 741085511. The next prime is 741085567. The reversal of 741085561 is 165580147.
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 408242025 + 332843536 = 20205^2 + 18244^2
It is a cyclic number.
It is not a de Polignac number, because 741085561 - 221 = 738988409 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 741085561.
It is not an unprimeable number, because it can be changed into a prime (741085567) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5075856 + ... + 5076001.
It is an arithmetic number, because the mean of its divisors is an integer number (187809373).
Almost surely, 2741085561 is an apocalyptic number.
It is an amenable number.
741085561 is a deficient number, since it is larger than the sum of its proper divisors (10151931).
741085561 is a wasteful number, since it uses less digits than its factorization.
741085561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10151930.
The product of its (nonzero) digits is 33600, while the sum is 37.
The square root of 741085561 is about 27222.8867132051.
The cubic root of 741085561 is about 904.9462483465.
The spelling of 741085561 in words is "seven hundred forty-one million, eighty-five thousand, five hundred sixty-one".