1242054530 has 8 divisors (see below), whose sum is σ = 2235698172. Its totient is φ = 496821808.

The previous prime is 1242054497. The next prime is 1242054553. The reversal of 1242054530 is 354502421.

1242054530 = T₂₂₂₈₇ + T₂₂₂₈₈ + ... + T₂₂₂₉₁.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1239673681 + 2380849 = 35209^2 + 1543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1242054530.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62102717 + ... + 62102736.

Almost surely, 2^1242054530 is an apocalyptic number.

1242054530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242054530 is a deficient number, since it is larger than the sum of its proper divisors (993643642).

1242054530 is a wasteful number, since it uses less digits than its factorization.

1242054530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124205460.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1242054530 is about 35242.7940152310. The cubic root of 1242054530 is about 1074.9300924434.

Adding to 1242054530 its reverse (354502421), we get a palindrome (1596556951).

The spelling of 1242054530 in words is "one billion, two hundred forty-two million, fifty-four thousand, five hundred thirty".