1523338513 has 2 divisors, whose sum is σ = 1523338514. Its totient is φ = 1523338512.

The previous prime is 1523338463. The next prime is 1523338519. The reversal of 1523338513 is 3158333251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1209091984 + 314246529 = 34772^2 + 17727^2 .

It is a cyclic number.

It is not a de Polignac number, because 1523338513 - 2¹³ = 1523330321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1523338519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761669256 + 761669257.

It is an arithmetic number, because the mean of its divisors is an integer number (761669257).

Almost surely, 2^1523338513 is an apocalyptic number.

It is an amenable number.

1523338513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523338513 is an equidigital number, since it uses as much as digits as its factorization.

1523338513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 1523338513 is about 39029.9694209463. The cubic root of 1523338513 is about 1150.6205882957.

The spelling of 1523338513 in words is "one billion, five hundred twenty-three million, three hundred thirty-eight thousand, five hundred thirteen".