251141252 has 6 divisors (see below), whose sum is σ = 439497198. Its totient is φ = 125570624.

The previous prime is 251141251. The next prime is 251141269. The reversal of 251141252 is 252141152.

It can be written as a sum of positive squares in only one way, i.e., 250462276 + 678976 = 15826^2 + 824^2 .

It is a super-2 number, since 2×251141252² = 126143856912255008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (251141251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31392653 + ... + 31392660.

It is an arithmetic number, because the mean of its divisors is an integer number (73249533).

Almost surely, 2^251141252 is an apocalyptic number.

It is an amenable number.

251141252 is a deficient number, since it is larger than the sum of its proper divisors (188355946).

251141252 is a wasteful number, since it uses less digits than its factorization.

251141252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62785317 (or 62785315 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 251141252 is about 15847.4367643477. The cubic root of 251141252 is about 630.9176615881.

The spelling of 251141252 in words is "two hundred fifty-one million, one hundred forty-one thousand, two hundred fifty-two".