155013329 has 2 divisors, whose sum is σ = 155013330. Its totient is φ = 155013328.

The previous prime is 155013301. The next prime is 155013349. The reversal of 155013329 is 923310551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130530625 + 24482704 = 11425^2 + 4948^2 .

It is a cyclic number.

It is not a de Polignac number, because 155013329 - 2²⁰ = 153964753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155013349) 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, 77506664 + 77506665.

It is an arithmetic number, because the mean of its divisors is an integer number (77506665).

Almost surely, 2^155013329 is an apocalyptic number.

It is an amenable number.

155013329 is a deficient number, since it is larger than the sum of its proper divisors (1).

155013329 is an equidigital number, since it uses as much as digits as its factorization.

155013329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 155013329 is about 12450.4348920028. The cubic root of 155013329 is about 537.1839327293.

The spelling of 155013329 in words is "one hundred fifty-five million, thirteen thousand, three hundred twenty-nine".