1332080621 has 2 divisors, whose sum is σ = 1332080622. Its totient is φ = 1332080620.

The previous prime is 1332080609. The next prime is 1332080647. The reversal of 1332080621 is 1260802331.

It is an a-pointer prime, because the next prime (1332080647) can be obtained adding 1332080621 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1128019396 + 204061225 = 33586^2 + 14285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1332080621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1332080681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666040310 + 666040311.

It is an arithmetic number, because the mean of its divisors is an integer number (666040311).

Almost surely, 2^1332080621 is an apocalyptic number.

It is an amenable number.

1332080621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1332080621 is an equidigital number, since it uses as much as digits as its factorization.

1332080621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1332080621 is about 36497.6796659733. The cubic root of 1332080621 is about 1100.2976112079.

Adding to 1332080621 its reverse (1260802331), we get a palindrome (2592882952).

The spelling of 1332080621 in words is "one billion, three hundred thirty-two million, eighty thousand, six hundred twenty-one".