155544045 has 16 divisors (see below), whose sum is σ = 249030720. Its totient is φ = 82903424.

The previous prime is 155544017. The next prime is 155544047. The reversal of 155544045 is 540445551.

It is a cyclic number.

It is not a de Polignac number, because 155544045 - 2¹² = 155539949 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155543997 and 155544015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155544047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34777 + ... + 38993.

It is an arithmetic number, because the mean of its divisors is an integer number (15564420).

Almost surely, 2^155544045 is an apocalyptic number.

155544045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155544045 is a deficient number, since it is larger than the sum of its proper divisors (93486675).

155544045 is a wasteful number, since it uses less digits than its factorization.

155544045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 155544045 is about 12471.7298319038. The cubic root of 155544045 is about 537.7962830190.

Adding to 155544045 its reverse (540445551), we get a palindrome (695989596).

The spelling of 155544045 in words is "one hundred fifty-five million, five hundred forty-four thousand, forty-five".