1260581 has 8 divisors (see below), whose sum is σ = 1455744. Its totient is φ = 1069200.

The previous prime is 1260577. The next prime is 1260583. The reversal of 1260581 is 1850621.

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 1260581 - 2² = 1260577 is a prime.

It is a super-3 number, since 3×1260581³ = 6009433388930108823, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260583) 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, 185 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (181968).

2^1260581 is an apocalyptic number.

It is an amenable number.

1260581 is a deficient number, since it is larger than the sum of its proper divisors (195163).

1260581 is a wasteful number, since it uses less digits than its factorization.

1260581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1260581 is about 1122.7559841747. The cubic root of 1260581 is about 108.0248285395.

The spelling of 1260581 in words is "one million, two hundred sixty thousand, five hundred eighty-one".