126860189 has 8 divisors (see below), whose sum is σ = 128560320. Its totient is φ = 125168256.

The previous prime is 126860147. The next prime is 126860197. The reversal of 126860189 is 981068621.

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

It is a cyclic number.

It is not a de Polignac number, because 126860189 - 2²⁰ = 125811613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126860119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33002 + ... + 36644.

It is an arithmetic number, because the mean of its divisors is an integer number (16070040).

Almost surely, 2^126860189 is an apocalyptic number.

It is an amenable number.

126860189 is a deficient number, since it is larger than the sum of its proper divisors (1700131).

126860189 is an equidigital number, since it uses as much as digits as its factorization.

126860189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 126860189 is about 11263.2228513867. Note that the first 3 decimals coincide. The cubic root of 126860189 is about 502.4680494194.

The spelling of 126860189 in words is "one hundred twenty-six million, eight hundred sixty thousand, one hundred eighty-nine".