1329625 has 16 divisors (see below), whose sum is σ = 1812096. Its totient is φ = 966000.

The previous prime is 1329623. The next prime is 1329631. The reversal of 1329625 is 5269231.

It is not a de Polignac number, because 1329625 - 2¹ = 1329623 is a prime.

It is an Ulam number.

1329625 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1329593 and 1329602.

It is not an unprimeable number, because it can be changed into a prime (1329623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892 + ... + 1858.

It is an arithmetic number, because the mean of its divisors is an integer number (113256).

2^1329625 is an apocalyptic number.

It is an amenable number.

1329625 is a deficient number, since it is larger than the sum of its proper divisors (482471).

1329625 is an equidigital number, since it uses as much as digits as its factorization.

1329625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 983 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 1329625 is about 1153.0936648859. The cubic root of 1329625 is about 109.9621081610.

The spelling of 1329625 in words is "one million, three hundred twenty-nine thousand, six hundred twenty-five".