61304401 has 4 divisors (see below), whose sum is σ = 61322404. Its totient is φ = 61286400.

The previous prime is 61304377. The next prime is 61304417. The reversal of 61304401 is 10440316.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14025025 + 47279376 = 3745^2 + 6876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61304401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61304501) 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, 2160 + ... + 11281.

It is an arithmetic number, because the mean of its divisors is an integer number (15330601).

Almost surely, 2^61304401 is an apocalyptic number.

It is an amenable number.

61304401 is a deficient number, since it is larger than the sum of its proper divisors (18003).

61304401 is a wasteful number, since it uses less digits than its factorization.

61304401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18002.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61304401 is about 7829.7127022644. The cubic root of 61304401 is about 394.3034264993.

Adding to 61304401 its reverse (10440316), we get a palindrome (71744717).

The spelling of 61304401 in words is "sixty-one million, three hundred four thousand, four hundred one".