61541 has 8 divisors (see below), whose sum is σ = 67200. Its totient is φ = 56160.

The previous prime is 61519. The next prime is 61543. The reversal of 61541 is 14516.

61541 = T₃₃ + T₃₄ + ... + T₇₃.

It is a happy number.

61541 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61543) 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, 740 + ... + 818.

It is an arithmetic number, because the mean of its divisors is an integer number (8400).

2⁶¹⁵⁴¹ is an apocalyptic number.

It is an amenable number.

61541 is a deficient number, since it is larger than the sum of its proper divisors (5659).

61541 is a wasteful number, since it uses less digits than its factorization.

61541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139.

The product of its digits is 120, while the sum is 17.

The square root of 61541 is about 248.0745855585. The cubic root of 61541 is about 39.4810035238.

It can be divided in two parts, 615 and 41, that added together give a palindrome (656).

The spelling of 61541 in words is "sixty-one thousand, five hundred forty-one".