61541843 has 4 divisors (see below), whose sum is σ = 67136568. Its totient is φ = 55947120.

The previous prime is 61541839. The next prime is 61541849. The reversal of 61541843 is 34814516.

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 61541843 - 2² = 61541839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61541849) 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, 2797346 + ... + 2797367.

It is an arithmetic number, because the mean of its divisors is an integer number (16784142).

Almost surely, 2^61541843 is an apocalyptic number.

61541843 is a deficient number, since it is larger than the sum of its proper divisors (5594725).

61541843 is a wasteful number, since it uses less digits than its factorization.

61541843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594724.

The product of its digits is 11520, while the sum is 32.

The square root of 61541843 is about 7844.8609292963. The cubic root of 61541843 is about 394.8118379571.

It can be divided in two parts, 6154 and 1843, that added together give a palindrome (7997).

The spelling of 61541843 in words is "sixty-one million, five hundred forty-one thousand, eight hundred forty-three".