1332991 has 4 divisors (see below), whose sum is σ = 1454184. Its totient is φ = 1211800.

The previous prime is 1332979. The next prime is 1332997. The reversal of 1332991 is 1992331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1332991 - 2⁵ = 1332959 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332997) 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, 60580 + ... + 60601.

It is an arithmetic number, because the mean of its divisors is an integer number (363546).

2^1332991 is an apocalyptic number.

1332991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1332991 is a deficient number, since it is larger than the sum of its proper divisors (121193).

1332991 is a wasteful number, since it uses less digits than its factorization.

1332991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121192.

The product of its digits is 1458, while the sum is 28.

The square root of 1332991 is about 1154.5522941816. The cubic root of 1332991 is about 110.0548211589.

The spelling of 1332991 in words is "one million, three hundred thirty-two thousand, nine hundred ninety-one".