1350513421 has 2 divisors, whose sum is σ = 1350513422. Its totient is φ = 1350513420.

The previous prime is 1350513413. The next prime is 1350513449. The reversal of 1350513421 is 1243150531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729756196 + 620757225 = 27014^2 + 24915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350513421 - 2³ = 1350513413 is a prime.

It is a super-2 number, since 2×1350513421² = 3647773000602246482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1350513721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675256710 + 675256711.

It is an arithmetic number, because the mean of its divisors is an integer number (675256711).

Almost surely, 2^1350513421 is an apocalyptic number.

It is an amenable number.

1350513421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350513421 is an equidigital number, since it uses as much as digits as its factorization.

1350513421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1350513421 is about 36749.3322524369. The cubic root of 1350513421 is about 1105.3495399184.

Adding to 1350513421 its reverse (1243150531), we get a palindrome (2593663952).

The spelling of 1350513421 in words is "one billion, three hundred fifty million, five hundred thirteen thousand, four hundred twenty-one".