1329361 has 4 divisors (see below), whose sum is σ = 1450224. Its totient is φ = 1208500.

The previous prime is 1329359. The next prime is 1329371. The reversal of 1329361 is 1639231.

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: 1639231 = 11 ⋅149021.

It is a cyclic number.

It is not a de Polignac number, because 1329361 - 2¹ = 1329359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1329371) 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, 60415 + ... + 60436.

It is an arithmetic number, because the mean of its divisors is an integer number (362556).

2^1329361 is an apocalyptic number.

1329361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1329361 is a deficient number, since it is larger than the sum of its proper divisors (120863).

1329361 is a wasteful number, since it uses less digits than its factorization.

1329361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120862.

The product of its digits is 972, while the sum is 25.

The square root of 1329361 is about 1152.9791845476. The cubic root of 1329361 is about 109.9548299389.

The spelling of 1329361 in words is "one million, three hundred twenty-nine thousand, three hundred sixty-one".