61124543 has 4 divisors (see below), whose sum is σ = 62546088. Its totient is φ = 59703000.

The previous prime is 61124519. The next prime is 61124549. The reversal of 61124543 is 34542116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61124543 - 2²² = 56930239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61124549) 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, 710708 + ... + 710793.

It is an arithmetic number, because the mean of its divisors is an integer number (15636522).

Almost surely, 2^61124543 is an apocalyptic number.

61124543 is a deficient number, since it is larger than the sum of its proper divisors (1421545).

61124543 is a wasteful number, since it uses less digits than its factorization.

61124543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421544.

The product of its digits is 2880, while the sum is 26.

The square root of 61124543 is about 7818.2186590041. The cubic root of 61124543 is about 393.9174395625.

Adding to 61124543 its reverse (34542116), we get a palindrome (95666659).

The spelling of 61124543 in words is "sixty-one million, one hundred twenty-four thousand, five hundred forty-three".