125378166 has 16 divisors (see below), whose sum is σ = 251517888. Its totient is φ = 41665800.

The previous prime is 125378161. The next prime is 125378171. The reversal of 125378166 is 661873521.

It is an interprime number because it is at equal distance from previous prime (125378161) and next prime (125378171).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125378161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29580 + ... + 33551.

It is an arithmetic number, because the mean of its divisors is an integer number (15719868).

Almost surely, 2^125378166 is an apocalyptic number.

125378166 is an abundant number, since it is smaller than the sum of its proper divisors (126139722).

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

125378166 is a wasteful number, since it uses less digits than its factorization.

125378166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63467.

The product of its digits is 60480, while the sum is 39.

The square root of 125378166 is about 11197.2392133061. The cubic root of 125378166 is about 500.5037137079.

The spelling of 125378166 in words is "one hundred twenty-five million, three hundred seventy-eight thousand, one hundred sixty-six".