741581 has 4 divisors (see below), whose sum is σ = 747132. Its totient is φ = 736032.

The previous prime is 741569. The next prime is 741593. The reversal of 741581 is 185147.

741581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 185147 = 17 ⋅10891.

It is an interprime number because it is at equal distance from previous prime (741569) and next prime (741593).

It can be written as a sum of positive squares in 2 ways, for example, as 292681 + 448900 = 541^2 + 670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-741581 is a prime.

It is a super-2 number, since 2×741581² = 1099884759122, which contains 22 as substring.

It is an Ulam number.

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 741581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741541) 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, 2570 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (186783).

2⁷⁴¹⁵⁸¹ is an apocalyptic number.

It is an amenable number.

741581 is a deficient number, since it is larger than the sum of its proper divisors (5551).

741581 is a wasteful number, since it uses less digits than its factorization.

741581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550.

The product of its digits is 1120, while the sum is 26.

The square root of 741581 is about 861.1509739877. The cubic root of 741581 is about 90.5147865098.

The spelling of 741581 in words is "seven hundred forty-one thousand, five hundred eighty-one".