61830043 has 4 divisors (see below), whose sum is σ = 67450968. Its totient is φ = 56209120.

The previous prime is 61830029. The next prime is 61830133. The reversal of 61830043 is 34003816.

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

It is not a de Polignac number, because 61830043 - 2⁵ = 61830011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61830943) 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, 2810446 + ... + 2810467.

It is an arithmetic number, because the mean of its divisors is an integer number (16862742).

Almost surely, 2^61830043 is an apocalyptic number.

61830043 is a deficient number, since it is larger than the sum of its proper divisors (5620925).

61830043 is a wasteful number, since it uses less digits than its factorization.

61830043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620924.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 61830043 is about 7863.2081875021. The cubic root of 61830043 is about 395.4271787241.

Adding to 61830043 its reverse (34003816), we get a palindrome (95833859).

The spelling of 61830043 in words is "sixty-one million, eight hundred thirty thousand, forty-three".