155129433 has 16 divisors (see below), whose sum is σ = 219847680. Its totient is φ = 97021584.

The previous prime is 155129431. The next prime is 155129459. The reversal of 155129433 is 334921551.

It is not a de Polignac number, because 155129433 - 2¹ = 155129431 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155129394 and 155129403.

It is not an unprimeable number, because it can be changed into a prime (155129431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7341 + ... + 19082.

It is an arithmetic number, because the mean of its divisors is an integer number (13740480).

Almost surely, 2^155129433 is an apocalyptic number.

It is an amenable number.

155129433 is a deficient number, since it is larger than the sum of its proper divisors (64718247).

155129433 is a wasteful number, since it uses less digits than its factorization.

155129433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26548.

The product of its digits is 16200, while the sum is 33.

The square root of 155129433 is about 12455.0966676297. The cubic root of 155129433 is about 537.3180150451.

The spelling of 155129433 in words is "one hundred fifty-five million, one hundred twenty-nine thousand, four hundred thirty-three".