145163261129 has 2 divisors, whose sum is σ = 145163261130. Its totient is φ = 145163261128.

The previous prime is 145163261041. The next prime is 145163261203. The reversal of 145163261129 is 921162361541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105573006400 + 39590254729 = 324920^2 + 198973^2 .

It is an emirp because it is prime and its reverse (921162361541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145163261129 is a prime.

It is not a weakly prime, because it can be changed into another prime (145163260129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72581630564 + 72581630565.

It is an arithmetic number, because the mean of its divisors is an integer number (72581630565).

Almost surely, 2^145163261129 is an apocalyptic number.

It is an amenable number.

145163261129 is a deficient number, since it is larger than the sum of its proper divisors (1).

145163261129 is an equidigital number, since it uses as much as digits as its factorization.

145163261129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The spelling of 145163261129 in words is "one hundred forty-five billion, one hundred sixty-three million, two hundred sixty-one thousand, one hundred twenty-nine".