1341021553 has 2 divisors, whose sum is σ = 1341021554. Its totient is φ = 1341021552.

The previous prime is 1341021551. The next prime is 1341021569. The reversal of 1341021553 is 3551201431.

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., 1047687424 + 293334129 = 32368^2 + 17127^2 .

It is an emirp because it is prime and its reverse (3551201431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1341021553 - 2¹ = 1341021551 is a prime.

It is a super-2 number, since 2×1341021553² = 3596677611221063618, which contains 22 as substring.

Together with 1341021551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1341021551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670510776 + 670510777.

It is an arithmetic number, because the mean of its divisors is an integer number (670510777).

Almost surely, 2^1341021553 is an apocalyptic number.

It is an amenable number.

1341021553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341021553 is an equidigital number, since it uses as much as digits as its factorization.

1341021553 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 1341021553 is about 36619.9611277784. The cubic root of 1341021553 is about 1102.7538583436.

Adding to 1341021553 its reverse (3551201431), we get a palindrome (4892222984).

The spelling of 1341021553 in words is "one billion, three hundred forty-one million, twenty-one thousand, five hundred fifty-three".