61113601 has 4 divisors (see below), whose sum is σ = 61154752. Its totient is φ = 61072452.

The previous prime is 61113593. The next prime is 61113607. The reversal of 61113601 is 10631116.

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 a cyclic number.

It is not a de Polignac number, because 61113601 - 2³ = 61113593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61113607) 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, 18261 + ... + 21346.

It is an arithmetic number, because the mean of its divisors is an integer number (15288688).

Almost surely, 2^61113601 is an apocalyptic number.

It is an amenable number.

61113601 is a deficient number, since it is larger than the sum of its proper divisors (41151).

61113601 is a wasteful number, since it uses less digits than its factorization.

61113601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41150.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 61113601 is about 7817.5188519120. The cubic root of 61113601 is about 393.8939329009.

Adding to 61113601 its reverse (10631116), we get a palindrome (71744717).

The spelling of 61113601 in words is "sixty-one million, one hundred thirteen thousand, six hundred one".