155129538 has 8 divisors (see below), whose sum is σ = 310259088. Its totient is φ = 51709844.

The previous prime is 155129479. The next prime is 155129543. The reversal of 155129538 is 835921551.

155129538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

155129538 is an admirable number.

It is a super-3 number, since 3×155129538³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155129496 and 155129505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12927456 + ... + 12927467.

It is an arithmetic number, because the mean of its divisors is an integer number (38782386).

Almost surely, 2^155129538 is an apocalyptic number.

155129538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155129538 is a wasteful number, since it uses less digits than its factorization.

155129538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25854928.

The product of its digits is 54000, while the sum is 39.

The square root of 155129538 is about 12455.1008827709. The cubic root of 155129538 is about 537.3181362738.

The spelling of 155129538 in words is "one hundred fifty-five million, one hundred twenty-nine thousand, five hundred thirty-eight".