1352621 has 4 divisors (see below), whose sum is σ = 1371744. Its totient is φ = 1333500.

The previous prime is 1352599. The next prime is 1352627. The reversal of 1352621 is 1262531.

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: 1262531 = 19 ⋅66449.

It is a cyclic number.

It is not a de Polignac number, because 1352621 - 2⁶ = 1352557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1352593 and 1352602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352627) 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, 9455 + ... + 9596.

It is an arithmetic number, because the mean of its divisors is an integer number (342936).

2^1352621 is an apocalyptic number.

It is an amenable number.

1352621 is a deficient number, since it is larger than the sum of its proper divisors (19123).

1352621 is an equidigital number, since it uses as much as digits as its factorization.

1352621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19122.

The product of its digits is 360, while the sum is 20.

The square root of 1352621 is about 1163.0223557611. The cubic root of 1352621 is about 110.5924235104.

The spelling of 1352621 in words is "one million, three hundred fifty-two thousand, six hundred twenty-one".