1116551251 has 2 divisors, whose sum is σ = 1116551252. Its totient is φ = 1116551250.

The previous prime is 1116551239. The next prime is 1116551297. The reversal of 1116551251 is 1521556111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1116551251 - 2¹³ = 1116543059 is a prime.

It is a super-2 number, since 2×1116551251² = 2493373392219330002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1116551221) 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, 558275625 + 558275626.

It is an arithmetic number, because the mean of its divisors is an integer number (558275626).

Almost surely, 2^1116551251 is an apocalyptic number.

1116551251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116551251 is an equidigital number, since it uses as much as digits as its factorization.

1116551251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1500, while the sum is 28.

The square root of 1116551251 is about 33414.8357919054. The cubic root of 1116551251 is about 1037.4317953131.

The spelling of 1116551251 in words is "one billion, one hundred sixteen million, five hundred fifty-one thousand, two hundred fifty-one".