25140443134 has 8 divisors (see below), whose sum is σ = 37712805048. Its totient is φ = 12569508120.

The previous prime is 25140443129. The next prime is 25140443171. The reversal of 25140443134 is 43134404152.

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

It is a junction number, because it is equal to n+sod(n) for n = 25140443096 and 25140443105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311532 + ... + 383839.

It is an arithmetic number, because the mean of its divisors is an integer number (4714100631).

Almost surely, 2^25140443134 is an apocalyptic number.

25140443134 is a deficient number, since it is larger than the sum of its proper divisors (12572361914).

25140443134 is a wasteful number, since it uses less digits than its factorization.

25140443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713450.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 25140443134 its reverse (43134404152), we get a palindrome (68274847286).

The spelling of 25140443134 in words is "twenty-five billion, one hundred forty million, four hundred forty-three thousand, one hundred thirty-four".