1260289 has 8 divisors (see below), whose sum is σ = 1340640. Its totient is φ = 1181376.

The previous prime is 1260283. The next prime is 1260293. The reversal of 1260289 is 9820621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1260289 - 2⁹ = 1259777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1260283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

2^1260289 is an apocalyptic number.

1260289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1260289 is a deficient number, since it is larger than the sum of its proper divisors (80351).

1260289 is a wasteful number, since it uses less digits than its factorization.

1260289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1260289 is about 1122.6259394830. The cubic root of 1260289 is about 108.0164869663.

The spelling of 1260289 in words is "one million, two hundred sixty thousand, two hundred eighty-nine".