125270666 has 4 divisors (see below), whose sum is σ = 187906002. Its totient is φ = 62635332.

The previous prime is 125270647. The next prime is 125270683. The reversal of 125270666 is 666072521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666072521 = 6577 ⋅101273.

It can be written as a sum of positive squares in only one way, i.e., 100420441 + 24850225 = 10021^2 + 4985^2 .

It is a super-3 number, since 3×125270666³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 31317665 + ... + 31317668.

Almost surely, 2^125270666 is an apocalyptic number.

125270666 is a deficient number, since it is larger than the sum of its proper divisors (62635336).

125270666 is an equidigital number, since it uses as much as digits as its factorization.

125270666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62635335.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 125270666 is about 11192.4378935065. The cubic root of 125270666 is about 500.3606278326.

The spelling of 125270666 in words is "one hundred twenty-five million, two hundred seventy thousand, six hundred sixty-six".