125999994 has 8 divisors (see below), whose sum is σ = 252000000. Its totient is φ = 41999996.

The previous prime is 125999959. The next prime is 126000013. The reversal of 125999994 is 499999521.

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

125999994 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10499994 + ... + 10500005.

It is an arithmetic number, because the mean of its divisors is an integer number (31500000).

Almost surely, 2^125999994 is an apocalyptic number.

125999994 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.

125999994 is a wasteful number, since it uses less digits than its factorization.

125999994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21000004.

The product of its digits is 2361960, while the sum is 57.

The square root of 125999994 is about 11224.9718930606. The cubic root of 125999994 is about 501.3297855388.

It can be divided in two parts, 12 and 5999994, that added together give a palindrome (6000006).

The spelling of 125999994 in words is "one hundred twenty-five million, nine hundred ninety-nine thousand, nine hundred ninety-four".