61404123 has 8 divisors (see below), whose sum is σ = 89315136. Its totient is φ = 37214600.

The previous prime is 61404097. The next prime is 61404131. The reversal of 61404123 is 32140416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61404123 - 2⁶ = 61404059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61404123.

It is not an unprimeable number, because it can be changed into a prime (61404173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930333 + ... + 930398.

It is an arithmetic number, because the mean of its divisors is an integer number (11164392).

Almost surely, 2^61404123 is an apocalyptic number.

61404123 is a deficient number, since it is larger than the sum of its proper divisors (27911013).

61404123 is a wasteful number, since it uses less digits than its factorization.

61404123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860745.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 61404123 is about 7836.0782921051. The cubic root of 61404123 is about 394.5171111303.

Adding to 61404123 its reverse (32140416), we get a palindrome (93544539).

The spelling of 61404123 in words is "sixty-one million, four hundred four thousand, one hundred twenty-three".