251948 has 6 divisors (see below), whose sum is σ = 440916. Its totient is φ = 125972.

The previous prime is 251947. The next prime is 251969. The reversal of 251948 is 849152.

251948 is nontrivially palindromic in base 13.

251948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

251948 is an undulating number in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 251948.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 251948.

It is not an unprimeable number, because it can be changed into a prime (251941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31490 + ... + 31497.

It is an arithmetic number, because the mean of its divisors is an integer number (73486).

2²⁵¹⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

251948 is a deficient number, since it is larger than the sum of its proper divisors (188968).

251948 is a wasteful number, since it uses less digits than its factorization.

251948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62991 (or 62989 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 251948 is about 501.9442200086. The cubic root of 251948 is about 63.1592510917.

The spelling of 251948 in words is "two hundred fifty-one thousand, nine hundred forty-eight".