1289544 has 16 divisors (see below), whose sum is σ = 3223920. Its totient is φ = 429840.

The previous prime is 1289537. The next prime is 1289551. The reversal of 1289544 is 4459821.

It is an interprime number because it is at equal distance from previous prime (1289537) and next prime (1289551).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26842 + ... + 26889.

It is an arithmetic number, because the mean of its divisors is an integer number (201495).

2^1289544 is an apocalyptic number.

It is an amenable number.

1289544 is an abundant number, since it is smaller than the sum of its proper divisors (1934376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1289544 is a wasteful number, since it uses less digits than its factorization.

1289544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53740 (or 53736 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 1289544 is about 1135.5809086102. The cubic root of 1289544 is about 108.8458950693.

The spelling of 1289544 in words is "one million, two hundred eighty-nine thousand, five hundred forty-four".