1242515150 has 48 divisors (see below), whose sum is σ = 2397502800. Its totient is φ = 478517760.

The previous prime is 1242515149. The next prime is 1242515189. The reversal of 1242515150 is 515152421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 626861 + ... + 628839.

It is an arithmetic number, because the mean of its divisors is an integer number (49947975).

Almost surely, 2^1242515150 is an apocalyptic number.

1242515150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242515150 is a deficient number, since it is larger than the sum of its proper divisors (1154987650).

1242515150 is a wasteful number, since it uses less digits than its factorization.

1242515150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1242515150 is about 35249.3283623958. The cubic root of 1242515150 is about 1075.0629564716.

Adding to 1242515150 its reverse (515152421), we get a palindrome (1757667571).

The spelling of 1242515150 in words is "one billion, two hundred forty-two million, five hundred fifteen thousand, one hundred fifty".