1259641 has 4 divisors (see below), whose sum is σ = 1314432. Its totient is φ = 1204852.

The previous prime is 1259639. The next prime is 1259653. The reversal of 1259641 is 1469521.

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.

It is a cyclic number.

It is not a de Polignac number, because 1259641 - 2¹ = 1259639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27361 + ... + 27406.

It is an arithmetic number, because the mean of its divisors is an integer number (328608).

2^1259641 is an apocalyptic number.

It is an amenable number.

1259641 is a deficient number, since it is larger than the sum of its proper divisors (54791).

1259641 is an equidigital number, since it uses as much as digits as its factorization.

1259641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54790.

The product of its digits is 2160, while the sum is 28.

The square root of 1259641 is about 1122.3372933303. The cubic root of 1259641 is about 107.9979709267.

The spelling of 1259641 in words is "one million, two hundred fifty-nine thousand, six hundred forty-one".