155144850 has 96 divisors (see below), whose sum is σ = 443304960. Its totient is φ = 35173440.

The previous prime is 155144767. The next prime is 155144897. The reversal of 155144850 is 58441551.

155144850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145419 + ... + 146481.

It is an arithmetic number, because the mean of its divisors is an integer number (4617760).

Almost surely, 2^155144850 is an apocalyptic number.

155144850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155144850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221652480).

155144850 is an abundant number, since it is smaller than the sum of its proper divisors (288160110).

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

155144850 is a wasteful number, since it uses less digits than its factorization.

155144850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 155144850 is about 12455.7155555191. The cubic root of 155144850 is about 537.3358142839.

The spelling of 155144850 in words is "one hundred fifty-five million, one hundred forty-four thousand, eight hundred fifty".