155201144 has 32 divisors (see below), whose sum is σ = 339655680. Its totient is φ = 65098464.

The previous prime is 155201099. The next prime is 155201173. The reversal of 155201144 is 441102551.

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 7 ways as a sum of consecutive naturals, for example, 26852 + ... + 32115.

It is an arithmetic number, because the mean of its divisors is an integer number (10614240).

Almost surely, 2^155201144 is an apocalyptic number.

155201144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155201144 is an abundant number, since it is smaller than the sum of its proper divisors (184454536).

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

155201144 is a wasteful number, since it uses less digits than its factorization.

155201144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59027 (or 59023 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 155201144 is about 12457.9751163662. The cubic root of 155201144 is about 537.4007968351.

Adding to 155201144 its reverse (441102551), we get a palindrome (596303695).

The spelling of 155201144 in words is "one hundred fifty-five million, two hundred one thousand, one hundred forty-four".