125212147 has 8 divisors (see below), whose sum is σ = 132224400. Its totient is φ = 118242144.

The previous prime is 125212141. The next prime is 125212163. The reversal of 125212147 is 741212521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125212147 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125212141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4372 + ... + 16417.

It is an arithmetic number, because the mean of its divisors is an integer number (16528050).

Almost surely, 2^125212147 is an apocalyptic number.

125212147 is a deficient number, since it is larger than the sum of its proper divisors (7012253).

125212147 is a wasteful number, since it uses less digits than its factorization.

125212147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125.

The product of its digits is 1120, while the sum is 25.

The square root of 125212147 is about 11189.8233676855. The cubic root of 125212147 is about 500.2827027948.

Adding to 125212147 its reverse (741212521), we get a palindrome (866424668).

The spelling of 125212147 in words is "one hundred twenty-five million, two hundred twelve thousand, one hundred forty-seven".