155389248 has 168 divisors, whose sum is σ = 539203392. Its totient is φ = 41766912.

The previous prime is 155389237. The next prime is 155389249. The reversal of 155389248 is 842983551.

155389248 is a `hidden beast` number, since 1 + 553 + 8 + 92 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155389249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67411 + ... + 69677.

It is an arithmetic number, because the mean of its divisors is an integer number (3209544).

Almost surely, 2^155389248 is an apocalyptic number.

155389248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155389248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269601696).

155389248 is an abundant number, since it is smaller than the sum of its proper divisors (383814144).

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

155389248 is a wasteful number, since it uses less digits than its factorization.

155389248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2296 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 155389248 is about 12465.5223717259. The cubic root of 155389248 is about 537.6178193498.

It can be divided in two parts, 155 and 389248, that added together give a triangular number (389403 = T₈₈₂).

The spelling of 155389248 in words is "one hundred fifty-five million, three hundred eighty-nine thousand, two hundred forty-eight".