155132129 has 2 divisors, whose sum is σ = 155132130. Its totient is φ = 155132128.

The previous prime is 155132077. The next prime is 155132137. The reversal of 155132129 is 921231551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113465104 + 41667025 = 10652^2 + 6455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155132129 is a prime.

It is not a weakly prime, because it can be changed into another prime (155132149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77566064 + 77566065.

It is an arithmetic number, because the mean of its divisors is an integer number (77566065).

Almost surely, 2^155132129 is an apocalyptic number.

It is an amenable number.

155132129 is a deficient number, since it is larger than the sum of its proper divisors (1).

155132129 is an equidigital number, since it uses as much as digits as its factorization.

155132129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 29.

The square root of 155132129 is about 12455.2048959461. The cubic root of 155132129 is about 537.3211277168.

The spelling of 155132129 in words is "one hundred fifty-five million, one hundred thirty-two thousand, one hundred twenty-nine".