1242342525 has 48 divisors (see below), whose sum is σ = 2149576704. Its totient is φ = 632436480.

The previous prime is 1242342509. The next prime is 1242342533. The reversal of 1242342525 is 5252432421.

It is not a de Polignac number, because 1242342525 - 2⁴ = 1242342509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242342492 and 1242342501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142852 + ... + 151298.

It is an arithmetic number, because the mean of its divisors is an integer number (44782848).

Almost surely, 2^1242342525 is an apocalyptic number.

1242342525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1242342525 is a deficient number, since it is larger than the sum of its proper divisors (907234179).

1242342525 is a wasteful number, since it uses less digits than its factorization.

1242342525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8550 (or 8545 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 1242342525 is about 35246.8796491264. The cubic root of 1242342525 is about 1075.0131673166.

Adding to 1242342525 its reverse (5252432421), we get a palindrome (6494774946).

The spelling of 1242342525 in words is "one billion, two hundred forty-two million, three hundred forty-two thousand, five hundred twenty-five".