155013144 has 192 divisors, whose sum is σ = 480453120. Its totient is φ = 41068800.

The previous prime is 155013109. The next prime is 155013167. The reversal of 155013144 is 441310551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3298129 + ... + 3298175.

It is an arithmetic number, because the mean of its divisors is an integer number (2502360).

Almost surely, 2^155013144 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 155013144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240226560).

155013144 is an abundant number, since it is smaller than the sum of its proper divisors (325439976).

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

155013144 is a wasteful number, since it uses less digits than its factorization.

155013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 155013144 is about 12450.4274625412. The cubic root of 155013144 is about 537.1837190292.

Adding to 155013144 its reverse (441310551), we get a palindrome (596323695).

The spelling of 155013144 in words is "one hundred fifty-five million, thirteen thousand, one hundred forty-four".