1440563053 has 4 divisors (see below), whose sum is σ = 1441351648. Its totient is φ = 1439774460.

The previous prime is 1440563041. The next prime is 1440563123. The reversal of 1440563053 is 3503650441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3503650441 = 11071 ⋅316471.

It is a cyclic number.

It is not a de Polignac number, because 1440563053 - 2⁵ = 1440563021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440563953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391551 + ... + 395212.

It is an arithmetic number, because the mean of its divisors is an integer number (360337912).

Almost surely, 2^1440563053 is an apocalyptic number.

It is an amenable number.

1440563053 is a deficient number, since it is larger than the sum of its proper divisors (788595).

1440563053 is an equidigital number, since it uses as much as digits as its factorization.

1440563053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788594.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1440563053 is about 37954.7500716314. The cubic root of 1440563053 is about 1129.3903969114.

The spelling of 1440563053 in words is "one billion, four hundred forty million, five hundred sixty-three thousand, fifty-three".