131153144423449 has 2 divisors, whose sum is σ = 131153144423450. Its totient is φ = 131153144423448.

The previous prime is 131153144423437. The next prime is 131153144423593. The reversal of 131153144423449 is 944324441351131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87623921385225 + 43529223038224 = 9360765^2 + 6597668^2 .

It is a cyclic number.

It is not a de Polignac number, because 131153144423449 - 2¹³ = 131153144415257 is a prime.

It is a super-2 number, since 2×131153144423449² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131153144423149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65576572211724 + 65576572211725.

It is an arithmetic number, because the mean of its divisors is an integer number (65576572211725).

Almost surely, 2^{131153144423449} is an apocalyptic number.

It is an amenable number.

131153144423449 is a deficient number, since it is larger than the sum of its proper divisors (1).

131153144423449 is an equidigital number, since it uses as much as digits as its factorization.

131153144423449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 49.

The spelling of 131153144423449 in words is "one hundred thirty-one trillion, one hundred fifty-three billion, one hundred forty-four million, four hundred twenty-three thousand, four hundred forty-nine".