242514531 has 12 divisors (see below), whose sum is σ = 400341552. Its totient is φ = 138579696.

The previous prime is 242514527. The next prime is 242514533. The reversal of 242514531 is 135415242.

It is not a de Polignac number, because 242514531 - 2² = 242514527 is a prime.

It is a super-2 number, since 2×242514531² = 117626595492299922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242514495 and 242514504.

It is not an unprimeable number, because it can be changed into a prime (242514533) 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, 1924656 + ... + 1924781.

It is an arithmetic number, because the mean of its divisors is an integer number (33361796).

Almost surely, 2^242514531 is an apocalyptic number.

242514531 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

242514531 is a deficient number, since it is larger than the sum of its proper divisors (157827021).

242514531 is a wasteful number, since it uses less digits than its factorization.

242514531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849450 (or 3849447 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 242514531 is about 15572.8780577002. The cubic root of 242514531 is about 623.6093076414.

Adding to 242514531 its reverse (135415242), we get a palindrome (377929773).

It can be divided in two parts, 24251 and 4531, that added together give a palindrome (28782).

The spelling of 242514531 in words is "two hundred forty-two million, five hundred fourteen thousand, five hundred thirty-one".