155111345 has 8 divisors (see below), whose sum is σ = 195930240. Its totient is φ = 117558000.

The previous prime is 155111339. The next prime is 155111381. The reversal of 155111345 is 543111551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155111345 - 2⁴ = 155111329 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816281 + ... + 816470.

It is an arithmetic number, because the mean of its divisors is an integer number (24491280).

Almost surely, 2^155111345 is an apocalyptic number.

It is an amenable number.

155111345 is a deficient number, since it is larger than the sum of its proper divisors (40818895).

155111345 is a wasteful number, since it uses less digits than its factorization.

155111345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632775.

The product of its digits is 1500, while the sum is 26.

The square root of 155111345 is about 12454.3705180150. The cubic root of 155111345 is about 537.2971305793.

Adding to 155111345 its reverse (543111551), we get a palindrome (698222896).

The spelling of 155111345 in words is "one hundred fifty-five million, one hundred eleven thousand, three hundred forty-five".