1400254811 has 2 divisors, whose sum is σ = 1400254812. Its totient is φ = 1400254810.

The previous prime is 1400254783. The next prime is 1400254813. The reversal of 1400254811 is 1184520041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400254811 - 2⁶ = 1400254747 is a prime.

Together with 1400254813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1400254813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700127405 + 700127406.

It is an arithmetic number, because the mean of its divisors is an integer number (700127406).

Almost surely, 2^1400254811 is an apocalyptic number.

1400254811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400254811 is an equidigital number, since it uses as much as digits as its factorization.

1400254811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1400254811 is about 37419.9787680325. The cubic root of 1400254811 is about 1118.7568080232.

Adding to 1400254811 its reverse (1184520041), we get a palindrome (2584774852).

The spelling of 1400254811 in words is "one billion, four hundred million, two hundred fifty-four thousand, eight hundred eleven".