156240144 has 80 divisors (see below), whose sum is σ = 450090240. Its totient is φ = 51891840.

The previous prime is 156240121. The next prime is 156240169. The reversal of 156240144 is 441042651.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171049 + ... + 171959.

It is an arithmetic number, because the mean of its divisors is an integer number (5626128).

Almost surely, 2^156240144 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 156240144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225045120).

156240144 is an abundant number, since it is smaller than the sum of its proper divisors (293850096).

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

156240144 is a wasteful number, since it uses less digits than its factorization.

156240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 156240144 is about 12499.6057537828. The cubic root of 156240144 is about 538.5973474121.

Adding to 156240144 its reverse (441042651), we get a palindrome (597282795).

The spelling of 156240144 in words is "one hundred fifty-six million, two hundred forty thousand, one hundred forty-four".