1288755093 has 4 divisors (see below), whose sum is σ = 1718340128. Its totient is φ = 859170060.

The previous prime is 1288755079. The next prime is 1288755121. The reversal of 1288755093 is 3905578821.

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: 3905578821 = 3 ⋅1301859607.

It is not a de Polignac number, because 1288755093 - 2¹⁰ = 1288754069 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 (1288755043) 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, 214792513 + ... + 214792518.

It is an arithmetic number, because the mean of its divisors is an integer number (429585032).

Almost surely, 2^1288755093 is an apocalyptic number.

It is an amenable number.

1288755093 is a deficient number, since it is larger than the sum of its proper divisors (429585035).

1288755093 is an equidigital number, since it uses as much as digits as its factorization.

1288755093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429585034.

The product of its (nonzero) digits is 604800, while the sum is 48.

The square root of 1288755093 is about 35899.2352704065. The cubic root of 1288755093 is about 1088.2369424865.

The spelling of 1288755093 in words is "one billion, two hundred eighty-eight million, seven hundred fifty-five thousand, ninety-three".