155129349 has 16 divisors (see below), whose sum is σ = 212336640. Its totient is φ = 100704240.

The previous prime is 155129311. The next prime is 155129371. The reversal of 155129349 is 943921551.

It is not a de Polignac number, because 155129349 - 2¹⁵ = 155096581 is a prime.

It is a super-2 number, since 2×155129349² = 48130229842327602, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155129749) 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 in 15 ways as a sum of consecutive naturals, for example, 14844 + ... + 23034.

It is an arithmetic number, because the mean of its divisors is an integer number (13271040).

Almost surely, 2^155129349 is an apocalyptic number.

It is an amenable number.

155129349 is a deficient number, since it is larger than the sum of its proper divisors (57207291).

155129349 is a wasteful number, since it uses less digits than its factorization.

155129349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8360.

The product of its digits is 48600, while the sum is 39.

The square root of 155129349 is about 12455.0932955157. The cubic root of 155129349 is about 537.3179180622.

The spelling of 155129349 in words is "one hundred fifty-five million, one hundred twenty-nine thousand, three hundred forty-nine".