155245244 has 48 divisors (see below), whose sum is σ = 344311296. Its totient is φ = 59486400.

The previous prime is 155245213. The next prime is 155245253. The reversal of 155245244 is 442542551.

It is a self number, because there is not a number n which added to its sum of digits gives 155245244.

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 15 ways as a sum of consecutive naturals, for example, 14657 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (7173152).

Almost surely, 2^155245244 is an apocalyptic number.

155245244 is a gapful number since it is divisible by the number (14) 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 155245244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172155648).

155245244 is an abundant number, since it is smaller than the sum of its proper divisors (189066052).

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

155245244 is a wasteful number, since it uses less digits than its factorization.

155245244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346 (or 8344 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 155245244 is about 12459.7449412097. The cubic root of 155245244 is about 537.4516923594.

Adding to 155245244 its reverse (442542551), we get a palindrome (597787795).

The spelling of 155245244 in words is "one hundred fifty-five million, two hundred forty-five thousand, two hundred forty-four".