155330043 has 16 divisors (see below), whose sum is σ = 226883712. Its totient is φ = 93744000.

The previous prime is 155329987. The next prime is 155330051. The reversal of 155330043 is 340033551.

It is a happy number.

155330043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-155330043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155329995 and 155330022.

It is not an unprimeable number, because it can be changed into a prime (155330083) 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, 1813 + ... + 17718.

It is an arithmetic number, because the mean of its divisors is an integer number (14180232).

Almost surely, 2^155330043 is an apocalyptic number.

155330043 is a deficient number, since it is larger than the sum of its proper divisors (71553669).

155330043 is a wasteful number, since it uses less digits than its factorization.

155330043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19786.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 155330043 is about 12463.1473954214. The cubic root of 155330043 is about 537.5495312567.

Adding to 155330043 its reverse (340033551), we get a palindrome (495363594).

The spelling of 155330043 in words is "one hundred fifty-five million, three hundred thirty thousand, forty-three".