155147884 has 12 divisors (see below), whose sum is σ = 271606608. Its totient is φ = 77546000.

The previous prime is 155147821. The next prime is 155147887. The reversal of 155147884 is 488741551.

It is a self number, because there is not a number n which added to its sum of digits gives 155147884.

It is not an unprimeable number, because it can be changed into a prime (155147887) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10209 + ... + 20359.

It is an arithmetic number, because the mean of its divisors is an integer number (22633884).

Almost surely, 2^155147884 is an apocalyptic number.

It is an amenable number.

155147884 is a deficient number, since it is larger than the sum of its proper divisors (116458724).

155147884 is a wasteful number, since it uses less digits than its factorization.

155147884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13976 (or 13974 counting only the distinct ones).

The product of its digits is 179200, while the sum is 43.

The square root of 155147884 is about 12455.8373464011. The cubic root of 155147884 is about 537.3393169594.

The spelling of 155147884 in words is "one hundred fifty-five million, one hundred forty-seven thousand, eight hundred eighty-four".