125210189 has 16 divisors (see below), whose sum is σ = 136980480. Its totient is φ = 113762880.

The previous prime is 125210179. The next prime is 125210201. The reversal of 125210189 is 981012521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125210189 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125210119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298622 + ... + 299040.

It is an arithmetic number, because the mean of its divisors is an integer number (8561280).

Almost surely, 2^125210189 is an apocalyptic number.

It is an amenable number.

125210189 is a deficient number, since it is larger than the sum of its proper divisors (11770291).

125210189 is a wasteful number, since it uses less digits than its factorization.

125210189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 125210189 is about 11189.7358771331. The cubic root of 125210189 is about 500.2800950642.

The spelling of 125210189 in words is "one hundred twenty-five million, two hundred ten thousand, one hundred eighty-nine".