1242514018 has 4 divisors (see below), whose sum is σ = 1863771030. Its totient is φ = 621257008.

The previous prime is 1242513997. The next prime is 1242514051. The reversal of 1242514018 is 8104152421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 702091009 + 540423009 = 26497^2 + 23247^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310628503 + ... + 310628506.

Almost surely, 2^1242514018 is an apocalyptic number.

1242514018 is a deficient number, since it is larger than the sum of its proper divisors (621257012).

1242514018 is an equidigital number, since it uses as much as digits as its factorization.

1242514018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621257011.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1242514018 is about 35249.3123053486. The cubic root of 1242514018 is about 1075.0626299909.

Adding to 1242514018 its reverse (8104152421), we get a palindrome (9346666439).

The spelling of 1242514018 in words is "one billion, two hundred forty-two million, five hundred fourteen thousand, eighteen".