1401343213 has 2 divisors, whose sum is σ = 1401343214. Its totient is φ = 1401343212.

The previous prime is 1401343187. The next prime is 1401343219. The reversal of 1401343213 is 3123431041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161650889 + 239692324 = 34083^2 + 15482^2 .

It is an emirp because it is prime and its reverse (3123431041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401343213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401343219) 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, 700671606 + 700671607.

It is an arithmetic number, because the mean of its divisors is an integer number (700671607).

Almost surely, 2^1401343213 is an apocalyptic number.

It is an amenable number.

1401343213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401343213 is an equidigital number, since it uses as much as digits as its factorization.

1401343213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1401343213 is about 37434.5190031874. The cubic root of 1401343213 is about 1119.0465985632.

Adding to 1401343213 its reverse (3123431041), we get a palindrome (4524774254).

The spelling of 1401343213 in words is "one billion, four hundred one million, three hundred forty-three thousand, two hundred thirteen".