126155906 has 8 divisors (see below), whose sum is σ = 189843264. Its totient is φ = 62874820.

The previous prime is 126155891. The next prime is 126155941. The reversal of 126155906 is 609551621.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100790 + ... + 102033.

It is an arithmetic number, because the mean of its divisors is an integer number (23730408).

Almost surely, 2^126155906 is an apocalyptic number.

126155906 is a deficient number, since it is larger than the sum of its proper divisors (63687358).

126155906 is a wasteful number, since it uses less digits than its factorization.

126155906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203136.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 126155906 is about 11231.9146186214. The cubic root of 126155906 is about 501.5364816121.

The spelling of 126155906 in words is "one hundred twenty-six million, one hundred fifty-five thousand, nine hundred six".