1440014231 has 2 divisors, whose sum is σ = 1440014232. Its totient is φ = 1440014230.

The previous prime is 1440014207. The next prime is 1440014243. The reversal of 1440014231 is 1324100441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1440014231 - 2⁶ = 1440014167 is a prime.

It is a super-2 number, since 2×1440014231² = 4147281970965042722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440074231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720007115 + 720007116.

It is an arithmetic number, because the mean of its divisors is an integer number (720007116).

Almost surely, 2^1440014231 is an apocalyptic number.

1440014231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440014231 is an equidigital number, since it uses as much as digits as its factorization.

1440014231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1440014231 is about 37947.5194314464. The cubic root of 1440014231 is about 1129.2469546127.

Adding to 1440014231 its reverse (1324100441), we get a palindrome (2764114672).

The spelling of 1440014231 in words is "one billion, four hundred forty million, fourteen thousand, two hundred thirty-one".