6181541 has 4 divisors (see below), whose sum is σ = 6189612. Its totient is φ = 6173472.

The previous prime is 6181531. The next prime is 6181573. The reversal of 6181541 is 1451816.

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 5452225 + 729316 = 2335^2 + 854^2 .

It is a cyclic number.

It is not a de Polignac number, because 6181541 - 2⁶ = 6181477 is a prime.

It is a super-2 number, since 2×6181541² = 76422898269362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6181541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6181531) 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, 2750 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (1547403).

Almost surely, 2^6181541 is an apocalyptic number.

It is an amenable number.

6181541 is a deficient number, since it is larger than the sum of its proper divisors (8071).

6181541 is an equidigital number, since it uses as much as digits as its factorization.

6181541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070.

The product of its digits is 960, while the sum is 26.

The square root of 6181541 is about 2486.2705001669. The cubic root of 6181541 is about 183.5265573454.

The spelling of 6181541 in words is "six million, one hundred eighty-one thousand, five hundred forty-one".