1288496545 has 16 divisors (see below), whose sum is σ = 1810182528. Its totient is φ = 861989760.

The previous prime is 1288496519. The next prime is 1288496549. The reversal of 1288496545 is 5456948821.

It is not a de Polignac number, because 1288496545 - 2²⁷ = 1154278817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1288496492 and 1288496501.

It is not an unprimeable number, because it can be changed into a prime (1288496549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447519 + ... + 450388.

It is an arithmetic number, because the mean of its divisors is an integer number (113136408).

Almost surely, 2^1288496545 is an apocalyptic number.

It is an amenable number.

1288496545 is a deficient number, since it is larger than the sum of its proper divisors (521685983).

1288496545 is an equidigital number, since it uses as much as digits as its factorization.

1288496545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897960.

The product of its digits is 2764800, while the sum is 52.

The square root of 1288496545 is about 35895.6340659975. The cubic root of 1288496545 is about 1088.1641641636.

The spelling of 1288496545 in words is "one billion, two hundred eighty-eight million, four hundred ninety-six thousand, five hundred forty-five".