1401618271 has 2 divisors, whose sum is σ = 1401618272. Its totient is φ = 1401618270.

The previous prime is 1401618263. The next prime is 1401618293. The reversal of 1401618271 is 1728161041.

It is a weak prime.

It is an emirp because it is prime and its reverse (1728161041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401618271 - 2³ = 1401618263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401618241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700809135 + 700809136.

It is an arithmetic number, because the mean of its divisors is an integer number (700809136).

Almost surely, 2^1401618271 is an apocalyptic number.

1401618271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401618271 is an equidigital number, since it uses as much as digits as its factorization.

1401618271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 1401618271 is about 37438.1926780661. The cubic root of 1401618271 is about 1119.1198098888.

The spelling of 1401618271 in words is "one billion, four hundred one million, six hundred eighteen thousand, two hundred seventy-one".