251130035 has 16 divisors (see below), whose sum is σ = 343629216. Its totient is φ = 174540288.

The previous prime is 251130017. The next prime is 251130037. The reversal of 251130035 is 530031152.

It is not a de Polignac number, because 251130035 - 2⁶ = 251129971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 251129989 and 251130016.

It is not an unprimeable number, because it can be changed into a prime (251130037) 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 in 15 ways as a sum of consecutive naturals, for example, 112529 + ... + 114738.

It is an arithmetic number, because the mean of its divisors is an integer number (21476826).

Almost surely, 2^251130035 is an apocalyptic number.

251130035 is a deficient number, since it is larger than the sum of its proper divisors (92499181).

251130035 is a wasteful number, since it uses less digits than its factorization.

251130035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227302.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 251130035 is about 15847.0828545824. The cubic root of 251130035 is about 630.9082683234.

Adding to 251130035 its reverse (530031152), we get a palindrome (781161187).

The spelling of 251130035 in words is "two hundred fifty-one million, one hundred thirty thousand, thirty-five".