135440554152511 has 2 divisors, whose sum is σ = 135440554152512. Its totient is φ = 135440554152510.

The previous prime is 135440554152493. The next prime is 135440554152557. The reversal of 135440554152511 is 115251455044531.

It is a happy number.

It is an a-pointer prime, because the next prime (135440554152557) can be obtained adding 135440554152511 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135440554152511 - 2⁵ = 135440554152479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135440554150511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67720277076255 + 67720277076256.

It is an arithmetic number, because the mean of its divisors is an integer number (67720277076256).

Almost surely, 2^{135440554152511} is an apocalyptic number.

135440554152511 is a deficient number, since it is larger than the sum of its proper divisors (1).

135440554152511 is an equidigital number, since it uses as much as digits as its factorization.

135440554152511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200000, while the sum is 46.

The spelling of 135440554152511 in words is "one hundred thirty-five trillion, four hundred forty billion, five hundred fifty-four million, one hundred fifty-two thousand, five hundred eleven".