242323155 has 24 divisors (see below), whose sum is σ = 427956048. Its totient is φ = 126799296.

The previous prime is 242323111. The next prime is 242323157. The reversal of 242323155 is 551323242.

It is a happy number.

242323155 is a `hidden beast` number, since 2 + 423 + 231 + 5 + 5 = 666.

It is not a de Polignac number, because 242323155 - 2⁶ = 242323091 is a prime.

It is a super-2 number, since 2×242323155² = 117441022898308050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (242323157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48417 + ... + 53186.

It is an arithmetic number, because the mean of its divisors is an integer number (17831502).

Almost surely, 2^242323155 is an apocalyptic number.

242323155 is a deficient number, since it is larger than the sum of its proper divisors (185632893).

242323155 is a wasteful number, since it uses less digits than its factorization.

242323155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101667 (or 101664 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 242323155 is about 15566.7323160643. The cubic root of 242323155 is about 623.4452277671.

Adding to 242323155 its reverse (551323242), we get a palindrome (793646397).

The spelling of 242323155 in words is "two hundred forty-two million, three hundred twenty-three thousand, one hundred fifty-five".