242939133 has 24 divisors (see below), whose sum is σ = 367174080. Its totient is φ = 154492800.

The previous prime is 242939101. The next prime is 242939143. The reversal of 242939133 is 331939242.

It is not a de Polignac number, because 242939133 - 2⁵ = 242939101 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242939143) 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, 85333 + ... + 88133.

It is an arithmetic number, because the mean of its divisors is an integer number (15298920).

Almost surely, 2^242939133 is an apocalyptic number.

242939133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

242939133 is a deficient number, since it is larger than the sum of its proper divisors (124234947).

242939133 is a wasteful number, since it uses less digits than its factorization.

242939133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249 (or 3246 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 242939133 is about 15586.5048359149. The cubic root of 242939133 is about 623.9730403170.

The spelling of 242939133 in words is "two hundred forty-two million, nine hundred thirty-nine thousand, one hundred thirty-three".