155356243 has 8 divisors (see below), whose sum is σ = 178242912. Its totient is φ = 132642816.

The previous prime is 155356241. The next prime is 155356247. The reversal of 155356243 is 342653551.

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

It is a cyclic number.

It is not a de Polignac number, because 155356243 - 2¹ = 155356241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155356199 and 155356208.

It is not an unprimeable number, because it can be changed into a prime (155356241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41380 + ... + 44977.

It is an arithmetic number, because the mean of its divisors is an integer number (22280364).

Almost surely, 2^155356243 is an apocalyptic number.

155356243 is a deficient number, since it is larger than the sum of its proper divisors (22886669).

155356243 is an equidigital number, since it uses as much as digits as its factorization.

155356243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86621.

The product of its digits is 54000, while the sum is 34.

The square root of 155356243 is about 12464.1984499606. The cubic root of 155356243 is about 537.5797529396.

The spelling of 155356243 in words is "one hundred fifty-five million, three hundred fifty-six thousand, two hundred forty-three".