1360661 has 4 divisors (see below), whose sum is σ = 1369824. Its totient is φ = 1351500.

The previous prime is 1360637. The next prime is 1360673. The reversal of 1360661 is 1660631.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1660631 = 7 ⋅237233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1360661 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 (1360631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355 + ... + 4656.

It is an arithmetic number, because the mean of its divisors is an integer number (342456).

2^1360661 is an apocalyptic number.

It is an amenable number.

1360661 is a deficient number, since it is larger than the sum of its proper divisors (9163).

1360661 is an equidigital number, since it uses as much as digits as its factorization.

1360661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9162.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1360661 is about 1166.4737459540. The cubic root of 1360661 is about 110.8111118068.

The spelling of 1360661 in words is "one million, three hundred sixty thousand, six hundred sixty-one".