242957511 has 12 divisors (see below), whose sum is σ = 351241488. Its totient is φ = 161831904.

The previous prime is 242957501. The next prime is 242957543. The reversal of 242957511 is 115759242.

It is not a de Polignac number, because 242957511 - 2¹⁰ = 242956487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242957501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30 + ... + 22043.

It is an arithmetic number, because the mean of its divisors is an integer number (29270124).

Almost surely, 2^242957511 is an apocalyptic number.

242957511 is a deficient number, since it is larger than the sum of its proper divisors (108283977).

242957511 is a wasteful number, since it uses less digits than its factorization.

242957511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23302 (or 23299 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 242957511 is about 15587.0943732307. The cubic root of 242957511 is about 623.9887741447.

The spelling of 242957511 in words is "two hundred forty-two million, nine hundred fifty-seven thousand, five hundred eleven".