1251144068 has 12 divisors (see below), whose sum is σ = 2189881680. Its totient is φ = 625463592.

The previous prime is 1251144047. The next prime is 1251144101. The reversal of 1251144068 is 8604411521.

It is a super-2 number, since 2×1251144068² = 3130722957783177248, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2423 + ... + 50081.

It is an arithmetic number, because the mean of its divisors is an integer number (182490140).

Almost surely, 2^1251144068 is an apocalyptic number.

It is an amenable number.

1251144068 is a deficient number, since it is larger than the sum of its proper divisors (938737612).

1251144068 is a wasteful number, since it uses less digits than its factorization.

1251144068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54226 (or 54224 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1251144068 is about 35371.5149237349. The cubic root of 1251144068 is about 1077.5458874413.

Adding to 1251144068 its reverse (8604411521), we get a palindrome (9855555589).

The spelling of 1251144068 in words is "one billion, two hundred fifty-one million, one hundred forty-four thousand, sixty-eight".