61097107 has 4 divisors (see below), whose sum is σ = 61668216. Its totient is φ = 60526000.

The previous prime is 61097081. The next prime is 61097119. The reversal of 61097107 is 70179016.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61097107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61197107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285394 + ... + 285607.

It is an arithmetic number, because the mean of its divisors is an integer number (15417054).

Almost surely, 2^61097107 is an apocalyptic number.

61097107 is a deficient number, since it is larger than the sum of its proper divisors (571109).

61097107 is a wasteful number, since it uses less digits than its factorization.

61097107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571108.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 61097107 is about 7816.4638424290. The cubic root of 61097107 is about 393.8584935934.

The spelling of 61097107 in words is "sixty-one million, ninety-seven thousand, one hundred seven".