61195863 has 8 divisors (see below), whose sum is σ = 81760000. Its totient is φ = 40714488.

The previous prime is 61195859. The next prime is 61195873. The reversal of 61195863 is 36859116.

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

It is not a de Polignac number, because 61195863 - 2² = 61195859 is a prime.

It is a super-3 number, since 3×61195863³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61195843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18943 + ... + 21936.

It is an arithmetic number, because the mean of its divisors is an integer number (10220000).

Almost surely, 2^61195863 is an apocalyptic number.

61195863 is a deficient number, since it is larger than the sum of its proper divisors (20564137).

61195863 is a wasteful number, since it uses less digits than its factorization.

61195863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41381.

The product of its digits is 38880, while the sum is 39.

The square root of 61195863 is about 7822.7784705947. The cubic root of 61195863 is about 394.0705873857.

The spelling of 61195863 in words is "sixty-one million, one hundred ninety-five thousand, eight hundred sixty-three".