155345144 has 16 divisors (see below), whose sum is σ = 291404400. Its totient is φ = 77637312.

The previous prime is 155345137. The next prime is 155345147. The reversal of 155345144 is 441543551.

It is a super-2 number, since 2×155345144² = 48264227528761472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155345144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155345147) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32117 + ... + 36635.

It is an arithmetic number, because the mean of its divisors is an integer number (18212775).

Almost surely, 2^155345144 is an apocalyptic number.

It is an amenable number.

155345144 is a deficient number, since it is larger than the sum of its proper divisors (136059256).

155345144 is a wasteful number, since it uses less digits than its factorization.

155345144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8822 (or 8818 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 155345144 is about 12463.7532067993. The cubic root of 155345144 is about 537.5669506652.

Adding to 155345144 its reverse (441543551), we get a palindrome (596888695).

The spelling of 155345144 in words is "one hundred fifty-five million, three hundred forty-five thousand, one hundred forty-four".