43125251 has 6 divisors (see below), whose sum is σ = 46697940. Its totient is φ = 39807768.

The previous prime is 43125227. The next prime is 43125281. The reversal of 43125251 is 15252134.

It is a de Polignac number, because none of the positive numbers 2^k-43125251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43125281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127421 + ... + 127758.

It is an arithmetic number, because the mean of its divisors is an integer number (7782990).

Almost surely, 2^43125251 is an apocalyptic number.

43125251 is a deficient number, since it is larger than the sum of its proper divisors (3572689).

43125251 is a wasteful number, since it uses less digits than its factorization.

43125251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255205 (or 255192 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 43125251 is about 6566.9818790674. The cubic root of 43125251 is about 350.6796345247.

Adding to 43125251 its reverse (15252134), we get a palindrome (58377385).

The spelling of 43125251 in words is "forty-three million, one hundred twenty-five thousand, two hundred fifty-one".