1332661 has 4 divisors (see below), whose sum is σ = 1453824. Its totient is φ = 1211500.

The previous prime is 1332649. The next prime is 1332671. The reversal of 1332661 is 1662331.

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: 1662331 = 11 ⋅151121.

It is a cyclic number.

It is not a de Polignac number, because 1332661 - 2¹⁹ = 808373 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 (1332631) 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, 60565 + ... + 60586.

It is an arithmetic number, because the mean of its divisors is an integer number (363456).

2^1332661 is an apocalyptic number.

1332661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1332661 is a deficient number, since it is larger than the sum of its proper divisors (121163).

1332661 is a wasteful number, since it uses less digits than its factorization.

1332661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121162.

The product of its digits is 648, while the sum is 22.

The square root of 1332661 is about 1154.4093727963. The cubic root of 1332661 is about 110.0457385548.

Adding to 1332661 its reverse (1662331), we get a palindrome (2994992).

The spelling of 1332661 in words is "one million, three hundred thirty-two thousand, six hundred sixty-one".