1140212551 has 2 divisors, whose sum is σ = 1140212552. Its totient is φ = 1140212550.

The previous prime is 1140212543. The next prime is 1140212569. The reversal of 1140212551 is 1552120411.

It is a weak prime.

It is an emirp because it is prime and its reverse (1552120411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1140212551 - 2³ = 1140212543 is a prime.

It is a super-2 number, since 2×1140212551² = 2600169322915855202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140212351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570106275 + 570106276.

It is an arithmetic number, because the mean of its divisors is an integer number (570106276).

Almost surely, 2^1140212551 is an apocalyptic number.

1140212551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140212551 is an equidigital number, since it uses as much as digits as its factorization.

1140212551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1140212551 is about 33767.0334942233. The cubic root of 1140212551 is about 1044.7088467969.

Adding to 1140212551 its reverse (1552120411), we get a palindrome (2692332962).

The spelling of 1140212551 in words is "one billion, one hundred forty million, two hundred twelve thousand, five hundred fifty-one".