251041003140542 has 8 divisors (see below), whose sum is σ = 396380531274600. Its totient is φ = 118914159382344.

The previous prime is 251041003140493. The next prime is 251041003140547. The reversal of 251041003140542 is 245041300140152.

251041003140542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 251041003140499 and 251041003140508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251041003140547) 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, 3303171093917 + ... + 3303171093992.

It is an arithmetic number, because the mean of its divisors is an integer number (49547566409325).

Almost surely, 2^{251041003140542} is an apocalyptic number.

251041003140542 is a deficient number, since it is larger than the sum of its proper divisors (145339528134058).

251041003140542 is a wasteful number, since it uses less digits than its factorization.

251041003140542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606342187930.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 251041003140542 its reverse (245041300140152), we get a palindrome (496082303280694).

The spelling of 251041003140542 in words is "two hundred fifty-one trillion, forty-one billion, three million, one hundred forty thousand, five hundred forty-two".