1335121573 has 2 divisors, whose sum is σ = 1335121574. Its totient is φ = 1335121572.

The previous prime is 1335121523. The next prime is 1335121589. The reversal of 1335121573 is 3751215331.

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., 1332031009 + 3090564 = 36497^2 + 1758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1335121573 is a prime.

It is a super-2 number, since 2×1335121573² = 3565099229379988658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1335121523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667560786 + 667560787.

It is an arithmetic number, because the mean of its divisors is an integer number (667560787).

Almost surely, 2^1335121573 is an apocalyptic number.

It is an amenable number.

1335121573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1335121573 is an equidigital number, since it uses as much as digits as its factorization.

1335121573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 31.

The square root of 1335121573 is about 36539.3154424108. The cubic root of 1335121573 is about 1101.1342495917.

The spelling of 1335121573 in words is "one billion, three hundred thirty-five million, one hundred twenty-one thousand, five hundred seventy-three".