125165443 has 4 divisors (see below), whose sum is σ = 134793568. Its totient is φ = 115537320.

The previous prime is 125165429. The next prime is 125165449. The reversal of 125165443 is 344561521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125165443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125165449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4814043 + ... + 4814068.

It is an arithmetic number, because the mean of its divisors is an integer number (33698392).

Almost surely, 2^125165443 is an apocalyptic number.

125165443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125165443 is a deficient number, since it is larger than the sum of its proper divisors (9628125).

125165443 is an equidigital number, since it uses as much as digits as its factorization.

125165443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9628124.

The product of its digits is 14400, while the sum is 31.

The square root of 125165443 is about 11187.7362768346. The cubic root of 125165443 is about 500.2204934177.

The spelling of 125165443 in words is "one hundred twenty-five million, one hundred sixty-five thousand, four hundred forty-three".