741561 has 8 divisors (see below), whose sum is σ = 995904. Its totient is φ = 490800.

The previous prime is 741547. The next prime is 741563. The reversal of 741561 is 165147.

741561 = T₂₇₈ + T₂₇₉ + ... + T₂₉₅.

741561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 741561 - 2¹¹ = 739513 is a prime.

It is a Curzon number.

741561 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 741561.

It is not an unprimeable number, because it can be changed into a prime (741563) 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, 366 + ... + 1271.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2⁷⁴¹⁵⁶¹ is an apocalyptic number.

It is an amenable number.

741561 is a deficient number, since it is larger than the sum of its proper divisors (254343).

741561 is a wasteful number, since it uses less digits than its factorization.

741561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791.

The product of its digits is 840, while the sum is 24.

The square root of 741561 is about 861.1393615438. The cubic root of 741561 is about 90.5139727924.

The spelling of 741561 in words is "seven hundred forty-one thousand, five hundred sixty-one".