155234243 has 8 divisors (see below), whose sum is σ = 158085312. Its totient is φ = 152399016.

The previous prime is 155234239. The next prime is 155234263. The reversal of 155234243 is 342432551.

It is a happy number.

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 155234243 - 2² = 155234239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155234263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16796 + ... + 24342.

It is an arithmetic number, because the mean of its divisors is an integer number (19760664).

Almost surely, 2^155234243 is an apocalyptic number.

155234243 is a deficient number, since it is larger than the sum of its proper divisors (2851069).

155234243 is an equidigital number, since it uses as much as digits as its factorization.

155234243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7921.

The product of its digits is 14400, while the sum is 29.

The square root of 155234243 is about 12459.3034717034. The cubic root of 155234243 is about 537.4389970790.

Adding to 155234243 its reverse (342432551), we get a palindrome (497666794).

The spelling of 155234243 in words is "one hundred fifty-five million, two hundred thirty-four thousand, two hundred forty-three".