1325693021 has 16 divisors (see below), whose sum is σ = 1449320448. Its totient is φ = 1208790000.

The previous prime is 1325692999. The next prime is 1325693059. The reversal of 1325693021 is 1203965231.

It is a cyclic number.

It is not a de Polignac number, because 1325693021 - 2⁶ = 1325692957 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 (1325693071) 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, 33896 + ... + 61646.

It is an arithmetic number, because the mean of its divisors is an integer number (90582528).

Almost surely, 2^1325693021 is an apocalyptic number.

It is an amenable number.

1325693021 is a deficient number, since it is larger than the sum of its proper divisors (123627427).

1325693021 is a wasteful number, since it uses less digits than its factorization.

1325693021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27872.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1325693021 is about 36410.0675775259. The cubic root of 1325693021 is about 1098.5360749268.

The spelling of 1325693021 in words is "one billion, three hundred twenty-five million, six hundred ninety-three thousand, twenty-one".