1242500530 has 8 divisors (see below), whose sum is σ = 2236500972. Its totient is φ = 497000208.

The previous prime is 1242500527. The next prime is 1242500537. The reversal of 1242500530 is 350052421.

It can be written as a sum of positive squares in 2 ways, for example, as 1206103441 + 36397089 = 34729^2 + 6033^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1242500537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62125017 + ... + 62125036.

Almost surely, 2^1242500530 is an apocalyptic number.

1242500530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242500530 is a deficient number, since it is larger than the sum of its proper divisors (994000442).

1242500530 is a wasteful number, since it uses less digits than its factorization.

1242500530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124250060.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1242500530 is about 35249.1209819479. The cubic root of 1242500530 is about 1075.0587398947.

Adding to 1242500530 its reverse (350052421), we get a palindrome (1592552951).

The spelling of 1242500530 in words is "one billion, two hundred forty-two million, five hundred thousand, five hundred thirty".