155443072 has 32 divisors (see below), whose sum is σ = 311018400. Its totient is φ = 77383680.

The previous prime is 155443049. The next prime is 155443129. The reversal of 155443072 is 270344551.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28329 + ... + 33367.

It is an arithmetic number, because the mean of its divisors is an integer number (9719325).

Almost surely, 2^155443072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155443072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155509200).

155443072 is an abundant number, since it is smaller than the sum of its proper divisors (155575328).

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

155443072 is an equidigital number, since it uses as much as digits as its factorization.

155443072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5294 (or 5282 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 155443072 is about 12467.6810995469. The cubic root of 155443072 is about 537.6798858516.

The spelling of 155443072 in words is "one hundred fifty-five million, four hundred forty-three thousand, seventy-two".