125951906 has 8 divisors (see below), whose sum is σ = 189365484. Its totient is φ = 62830080.

The previous prime is 125951899. The next prime is 125951921. The reversal of 125951906 is 609159521.

It can be written as a sum of positive squares in 2 ways, for example, as 88190881 + 37761025 = 9391^2 + 6145^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 125951906.

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, 71855 + ... + 73586.

Almost surely, 2^125951906 is an apocalyptic number.

125951906 is a deficient number, since it is larger than the sum of its proper divisors (63413578).

125951906 is a wasteful number, since it uses less digits than its factorization.

125951906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145876.

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 125951906 is about 11222.8296788288. The cubic root of 125951906 is about 501.2659997836.

The spelling of 125951906 in words is "one hundred twenty-five million, nine hundred fifty-one thousand, nine hundred six".