61423113 has 4 divisors (see below), whose sum is σ = 81897488. Its totient is φ = 40948740.

The previous prime is 61423111. The next prime is 61423147. The reversal of 61423113 is 31132416.

61423113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61423113 - 2¹ = 61423111 is a prime.

It is a super-2 number, since 2×61423113² = 7545597621221538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61423113.

It is not an unprimeable number, because it can be changed into a prime (61423111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10237183 + ... + 10237188.

It is an arithmetic number, because the mean of its divisors is an integer number (20474372).

Almost surely, 2^61423113 is an apocalyptic number.

It is an amenable number.

61423113 is a deficient number, since it is larger than the sum of its proper divisors (20474375).

61423113 is a wasteful number, since it uses less digits than its factorization.

61423113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20474374.

The product of its digits is 432, while the sum is 21.

The square root of 61423113 is about 7837.2899014902. The cubic root of 61423113 is about 394.5577767371.

Adding to 61423113 its reverse (31132416), we get a palindrome (92555529).

The spelling of 61423113 in words is "sixty-one million, four hundred twenty-three thousand, one hundred thirteen".