1293661 has 8 divisors (see below), whose sum is σ = 1382400. Its totient is φ = 1207920.

The previous prime is 1293659. The next prime is 1293701. The reversal of 1293661 is 1663921.

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 1293661 - 2¹ = 1293659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293361) 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, 180 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (172800).

2^1293661 is an apocalyptic number.

It is an amenable number.

1293661 is a deficient number, since it is larger than the sum of its proper divisors (88739).

1293661 is a wasteful number, since it uses less digits than its factorization.

1293661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499.

The product of its digits is 1944, while the sum is 28.

The square root of 1293661 is about 1137.3921926934. The cubic root of 1293661 is about 108.9616058700.

The spelling of 1293661 in words is "one million, two hundred ninety-three thousand, six hundred sixty-one".