1251163214 has 32 divisors (see below), whose sum is σ = 2211826176. Its totient is φ = 519588000.

The previous prime is 1251163213. The next prime is 1251163231. The reversal of 1251163214 is 4123611521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251163213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125207 + ... + 134829.

It is an arithmetic number, because the mean of its divisors is an integer number (69119568).

Almost surely, 2^1251163214 is an apocalyptic number.

1251163214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1251163214 is a deficient number, since it is larger than the sum of its proper divisors (960662962).

1251163214 is a wasteful number, since it uses less digits than its factorization.

1251163214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9920.

The product of its digits is 1440, while the sum is 26.

The square root of 1251163214 is about 35371.7855642036. The cubic root of 1251163214 is about 1077.5513839008.

Adding to 1251163214 its reverse (4123611521), we get a palindrome (5374774735).

The spelling of 1251163214 in words is "one billion, two hundred fifty-one million, one hundred sixty-three thousand, two hundred fourteen".