741127561 has 4 divisors (see below), whose sum is σ = 741455892. Its totient is φ = 740799232.

The previous prime is 741127523. The next prime is 741127573. The reversal of 741127561 is 165721147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 165721147 = 59 ⋅2808833.

It can be written as a sum of positive squares in 2 ways, for example, as 718508025 + 22619536 = 26805^2 + 4756^2 .

It is a cyclic number.

It is not a de Polignac number, because 741127561 - 2¹⁷ = 740996489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (741127511) 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, 160756 + ... + 165301.

It is an arithmetic number, because the mean of its divisors is an integer number (185363973).

Almost surely, 2^741127561 is an apocalyptic number.

It is an amenable number.

741127561 is a deficient number, since it is larger than the sum of its proper divisors (328331).

741127561 is a wasteful number, since it uses less digits than its factorization.

741127561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328330.

The product of its digits is 11760, while the sum is 34.

The square root of 741127561 is about 27223.6581120172. The cubic root of 741127561 is about 904.9633435495.

The spelling of 741127561 in words is "seven hundred forty-one million, one hundred twenty-seven thousand, five hundred sixty-one".