135504073 has 2 divisors, whose sum is σ = 135504074. Its totient is φ = 135504072.

The previous prime is 135504049. The next prime is 135504091. The reversal of 135504073 is 370405531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116380944 + 19123129 = 10788^2 + 4373^2 .

It is a cyclic number.

It is not a de Polignac number, because 135504073 - 2⁵ = 135504041 is a prime.

It is a super-2 number, since 2×135504073² = 36722707599178658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135504023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67752036 + 67752037.

It is an arithmetic number, because the mean of its divisors is an integer number (67752037).

Almost surely, 2^135504073 is an apocalyptic number.

It is an amenable number.

135504073 is a deficient number, since it is larger than the sum of its proper divisors (1).

135504073 is an equidigital number, since it uses as much as digits as its factorization.

135504073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 135504073 is about 11640.6216758385. The cubic root of 135504073 is about 513.6304744605.

The spelling of 135504073 in words is "one hundred thirty-five million, five hundred four thousand, seventy-three".