155047155 has 16 divisors (see below), whose sum is σ = 248272800. Its totient is φ = 82626048.

The previous prime is 155047141. The next prime is 155047169. The reversal of 155047155 is 551740551.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (155047141) and next prime (155047169).

It is not a de Polignac number, because 155047155 - 2¹⁰ = 155046131 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 15 ways as a sum of consecutive naturals, for example, 19899 + ... + 26571.

It is an arithmetic number, because the mean of its divisors is an integer number (15517050).

Almost surely, 2^155047155 is an apocalyptic number.

155047155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155047155 is a deficient number, since it is larger than the sum of its proper divisors (93225645).

155047155 is a wasteful number, since it uses less digits than its factorization.

155047155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8230.

The product of its (nonzero) digits is 17500, while the sum is 33.

The square root of 155047155 is about 12451.7932443484. The cubic root of 155047155 is about 537.2230034816.

Multiplying 155047155 by its sum of digits (33), we get a palindrome (5116556115).

The spelling of 155047155 in words is "one hundred fifty-five million, forty-seven thousand, one hundred fifty-five".