242551023 has 16 divisors (see below), whose sum is σ = 379940736. Its totient is φ = 135692640.

The previous prime is 242551007. The next prime is 242551063. The reversal of 242551023 is 320155242.

It is not a de Polignac number, because 242551023 - 2⁴ = 242551007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242550984 and 242551002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242551063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282265 + ... + 283122.

It is an arithmetic number, because the mean of its divisors is an integer number (23746296).

Almost surely, 2^242551023 is an apocalyptic number.

242551023 is a deficient number, since it is larger than the sum of its proper divisors (137389713).

242551023 is a wasteful number, since it uses less digits than its factorization.

242551023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565414.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 242551023 is about 15574.0496660310. The cubic root of 242551023 is about 623.6405849556.

The spelling of 242551023 in words is "two hundred forty-two million, five hundred fifty-one thousand, twenty-three".