61199994 has 8 divisors (see below), whose sum is σ = 122400000. Its totient is φ = 20399996.

The previous prime is 61199993. The next prime is 61200023. The reversal of 61199994 is 49999116.

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

61199994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (61199993) 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, 5099994 + ... + 5100005.

It is an arithmetic number, because the mean of its divisors is an integer number (15300000).

Almost surely, 2^61199994 is an apocalyptic number.

61199994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61199994 is a wasteful number, since it uses less digits than its factorization.

61199994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200004.

The product of its digits is 157464, while the sum is 48.

The square root of 61199994 is about 7823.0425027607. The cubic root of 61199994 is about 394.0794543738.

The spelling of 61199994 in words is "sixty-one million, one hundred ninety-nine thousand, nine hundred ninety-four".