153505133251109 has 2 divisors, whose sum is σ = 153505133251110. Its totient is φ = 153505133251108.

The previous prime is 153505133251079. The next prime is 153505133251133. The reversal of 153505133251109 is 901152331505351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147184283594209 + 6320849656900 = 12131953^2 + 2514130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153505133251109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153505133251109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153505133251009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76752566625554 + 76752566625555.

It is an arithmetic number, because the mean of its divisors is an integer number (76752566625555).

Almost surely, 2^{153505133251109} is an apocalyptic number.

It is an amenable number.

153505133251109 is a deficient number, since it is larger than the sum of its proper divisors (1).

153505133251109 is an equidigital number, since it uses as much as digits as its factorization.

153505133251109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 303750, while the sum is 44.

The spelling of 153505133251109 in words is "one hundred fifty-three trillion, five hundred five billion, one hundred thirty-three million, two hundred fifty-one thousand, one hundred nine".