1350277021 has 2 divisors, whose sum is σ = 1350277022. Its totient is φ = 1350277020.

The previous prime is 1350277007. The next prime is 1350277057. The reversal of 1350277021 is 1207720531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1118902500 + 231374521 = 33450^2 + 15211^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350277021 - 2⁵ = 1350276989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1350277121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675138510 + 675138511.

It is an arithmetic number, because the mean of its divisors is an integer number (675138511).

Almost surely, 2^1350277021 is an apocalyptic number.

It is an amenable number.

1350277021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350277021 is an equidigital number, since it uses as much as digits as its factorization.

1350277021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 1350277021 is about 36746.1157266996. The cubic root of 1350277021 is about 1105.2850410211.

Adding to 1350277021 its reverse (1207720531), we get a palindrome (2557997552).

The spelling of 1350277021 in words is "one billion, three hundred fifty million, two hundred seventy-seven thousand, twenty-one".