1401835231 has 2 divisors, whose sum is σ = 1401835232. Its totient is φ = 1401835230.

The previous prime is 1401835199. The next prime is 1401835247. The reversal of 1401835231 is 1325381041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401835231 - 2⁵ = 1401835199 is a prime.

It is a super-2 number, since 2×1401835231² = 3930284029745646722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1401835231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401838231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700917615 + 700917616.

It is an arithmetic number, because the mean of its divisors is an integer number (700917616).

Almost surely, 2^1401835231 is an apocalyptic number.

1401835231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401835231 is an equidigital number, since it uses as much as digits as its factorization.

1401835231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1401835231 is about 37441.0901417146. The cubic root of 1401835231 is about 1119.1775506950.

The spelling of 1401835231 in words is "one billion, four hundred one million, eight hundred thirty-five thousand, two hundred thirty-one".