1401406211 has 2 divisors, whose sum is σ = 1401406212. Its totient is φ = 1401406210.

The previous prime is 1401406207. The next prime is 1401406241. The reversal of 1401406211 is 1126041041.

It is a weak prime.

It is an emirp because it is prime and its reverse (1126041041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401406211 - 2² = 1401406207 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401406241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700703105 + 700703106.

It is an arithmetic number, because the mean of its divisors is an integer number (700703106).

Almost surely, 2^1401406211 is an apocalyptic number.

1401406211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401406211 is an equidigital number, since it uses as much as digits as its factorization.

1401406211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1401406211 is about 37435.3604363575. The cubic root of 1401406211 is about 1119.0633673891.

Adding to 1401406211 its reverse (1126041041), we get a palindrome (2527447252).

The spelling of 1401406211 in words is "one billion, four hundred one million, four hundred six thousand, two hundred eleven".