1242054250 has 32 divisors (see below), whose sum is σ = 2335656960. Its totient is φ = 494571600.

The previous prime is 1242054227. The next prime is 1242054271. The reversal of 1242054250 is 524502421.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44611 + ... + 66889.

It is an arithmetic number, because the mean of its divisors is an integer number (72989280).

Almost surely, 2^1242054250 is an apocalyptic number.

1242054250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242054250 is a deficient number, since it is larger than the sum of its proper divisors (1093602710).

1242054250 is a wasteful number, since it uses less digits than its factorization.

1242054250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22519 (or 22509 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1242054250 is about 35242.7900427875. The cubic root of 1242054250 is about 1074.9300116685.

Adding to 1242054250 its reverse (524502421), we get a palindrome (1766556671).

The spelling of 1242054250 in words is "one billion, two hundred forty-two million, fifty-four thousand, two hundred fifty".