61199601 has 4 divisors (see below), whose sum is σ = 81599472. Its totient is φ = 40799732.

The previous prime is 61199597. The next prime is 61199603. The reversal of 61199601 is 10699116.

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 61199601 - 2² = 61199597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61199603) 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, 10199931 + ... + 10199936.

It is an arithmetic number, because the mean of its divisors is an integer number (20399868).

Almost surely, 2^61199601 is an apocalyptic number.

It is an amenable number.

61199601 is a deficient number, since it is larger than the sum of its proper divisors (20399871).

61199601 is a wasteful number, since it uses less digits than its factorization.

61199601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20399870.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 61199601 is about 7823.0173846157. The cubic root of 61199601 is about 394.0786108359.

The spelling of 61199601 in words is "sixty-one million, one hundred ninety-nine thousand, six hundred one".