126605994 has 8 divisors (see below), whose sum is σ = 253212000. Its totient is φ = 42201996.

The previous prime is 126605981. The next prime is 126606001. The reversal of 126605994 is 499506621.

It is a happy number.

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

126605994 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, 10550494 + ... + 10550505.

It is an arithmetic number, because the mean of its divisors is an integer number (31651500).

Almost surely, 2^126605994 is an apocalyptic number.

126605994 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.

126605994 is a wasteful number, since it uses less digits than its factorization.

126605994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21101004.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 126605994 is about 11251.9329006176. The cubic root of 126605994 is about 502.1322196866.

The spelling of 126605994 in words is "one hundred twenty-six million, six hundred five thousand, nine hundred ninety-four".