245124242 has 8 divisors (see below), whose sum is σ = 401112432. Its totient is φ = 111420100.

The previous prime is 245124197. The next prime is 245124251. The reversal of 245124242 is 242421542.

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

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 3 ways as a sum of consecutive naturals, for example, 5570984 + ... + 5571027.

It is an arithmetic number, because the mean of its divisors is an integer number (50139054).

Almost surely, 2^245124242 is an apocalyptic number.

245124242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245124242 is a deficient number, since it is larger than the sum of its proper divisors (155988190).

245124242 is a wasteful number, since it uses less digits than its factorization.

245124242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11142024.

The product of its digits is 5120, while the sum is 26.

The square root of 245124242 is about 15656.4441045852. Note that the first 3 decimals coincide. The cubic root of 245124242 is about 625.8382284676.

Adding to 245124242 its reverse (242421542), we get a palindrome (487545784).

The spelling of 245124242 in words is "two hundred forty-five million, one hundred twenty-four thousand, two hundred forty-two".