25145143 has 2 divisors, whose sum is σ = 25145144. Its totient is φ = 25145142.

The previous prime is 25145129. The next prime is 25145149. The reversal of 25145143 is 34154152.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25145143 - 2¹⁷ = 25014071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25145149) 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 as a sum of consecutive naturals, namely, 12572571 + 12572572.

It is an arithmetic number, because the mean of its divisors is an integer number (12572572).

Almost surely, 2^25145143 is an apocalyptic number.

25145143 is a deficient number, since it is larger than the sum of its proper divisors (1).

25145143 is an equidigital number, since it uses as much as digits as its factorization.

25145143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 25.

The square root of 25145143 is about 5014.4932944416. The cubic root of 25145143 is about 292.9665498589.

Adding to 25145143 its reverse (34154152), we get a palindrome (59299295).

Subtracting 25145143 from its reverse (34154152), we obtain a palindrome (9009009).

The spelling of 25145143 in words is "twenty-five million, one hundred forty-five thousand, one hundred forty-three".