125144243 has 4 divisors (see below), whose sum is σ = 143022000. Its totient is φ = 107266488.

The previous prime is 125144237. The next prime is 125144263. The reversal of 125144243 is 342441521.

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

It is a de Polignac number, because none of the positive numbers 2^k-125144243 is a prime.

It is a super-2 number, since 2×125144243² = 31322163112086098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125144213) 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, 8938868 + ... + 8938881.

It is an arithmetic number, because the mean of its divisors is an integer number (35755500).

Almost surely, 2^125144243 is an apocalyptic number.

125144243 is a deficient number, since it is larger than the sum of its proper divisors (17877757).

125144243 is an equidigital number, since it uses as much as digits as its factorization.

125144243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17877756.

The product of its digits is 3840, while the sum is 26.

The square root of 125144243 is about 11186.7887706884. The cubic root of 125144243 is about 500.1922500703.

Adding to 125144243 its reverse (342441521), we get a palindrome (467585764).

The spelling of 125144243 in words is "one hundred twenty-five million, one hundred forty-four thousand, two hundred forty-three".