1350589921 has 2 divisors, whose sum is σ = 1350589922. Its totient is φ = 1350589920.

The previous prime is 1350589853. The next prime is 1350589931. The reversal of 1350589921 is 1299850531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704159296 + 646430625 = 26536^2 + 25425^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350589921 - 2²³ = 1342201313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1350589931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675294960 + 675294961.

It is an arithmetic number, because the mean of its divisors is an integer number (675294961).

Almost surely, 2^1350589921 is an apocalyptic number.

It is an amenable number.

1350589921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350589921 is an equidigital number, since it uses as much as digits as its factorization.

1350589921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 1350589921 is about 36750.3730729363. The cubic root of 1350589921 is about 1105.3704104116.

The spelling of 1350589921 in words is "one billion, three hundred fifty million, five hundred eighty-nine thousand, nine hundred twenty-one".