155129469 has 16 divisors (see below), whose sum is σ = 230446080. Its totient is φ = 92016560.

The previous prime is 155129459. The next prime is 155129477. The reversal of 155129469 is 964921551.

It is a cyclic number.

It is not a de Polignac number, because 155129469 - 2⁸ = 155129213 is a prime.

It is a super-2 number, since 2×155129469² = 48130304304443922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155129469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155129459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48459 + ... + 51560.

It is an arithmetic number, because the mean of its divisors is an integer number (14402880).

Almost surely, 2^155129469 is an apocalyptic number.

It is an amenable number.

155129469 is a deficient number, since it is larger than the sum of its proper divisors (75316611).

155129469 is a wasteful number, since it uses less digits than its factorization.

155129469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100080.

The product of its digits is 97200, while the sum is 42.

The square root of 155129469 is about 12455.0981128211. The cubic root of 155129469 is about 537.3180566092.

The spelling of 155129469 in words is "one hundred fifty-five million, one hundred twenty-nine thousand, four hundred sixty-nine".