13531125277 has 2 divisors, whose sum is σ = 13531125278. Its totient is φ = 13531125276.

The previous prime is 13531125221. The next prime is 13531125317. The reversal of 13531125277 is 77252113531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10155399076 + 3375726201 = 100774^2 + 58101^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531125277 - 2⁷ = 13531125149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531125977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765562638 + 6765562639.

It is an arithmetic number, because the mean of its divisors is an integer number (6765562639).

Almost surely, 2^13531125277 is an apocalyptic number.

It is an amenable number.

13531125277 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531125277 is an equidigital number, since it uses as much as digits as its factorization.

13531125277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 37.

The spelling of 13531125277 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-five thousand, two hundred seventy-seven".