1242616512 has 56 divisors (see below), whose sum is σ = 3332831536. Its totient is φ = 408526848.

The previous prime is 1242616477. The next prime is 1242616553. The reversal of 1242616512 is 2156162421.

It is a super-2 number, since 2×1242616512² = 3088191591790092288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1242616512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30313 + ... + 58344.

Almost surely, 2^1242616512 is an apocalyptic number.

1242616512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242616512 is an abundant number, since it is smaller than the sum of its proper divisors (2090215024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242616512 is an equidigital number, since it uses as much as digits as its factorization.

1242616512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88745 (or 88735 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 1242616512 is about 35250.7661193342. The cubic root of 1242616512 is about 1075.0921895339.

Adding to 1242616512 its reverse (2156162421), we get a palindrome (3398778933).

The spelling of 1242616512 in words is "one billion, two hundred forty-two million, six hundred sixteen thousand, five hundred twelve".