245249156 has 12 divisors (see below), whose sum is σ = 431112192. Its totient is φ = 122074248.

The previous prime is 245249129. The next prime is 245249171. The reversal of 245249156 is 651942542.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 136580 + ... + 138363.

It is an arithmetic number, because the mean of its divisors is an integer number (35926016).

Almost surely, 2^245249156 is an apocalyptic number.

It is an amenable number.

245249156 is a deficient number, since it is larger than the sum of its proper divisors (185863036).

245249156 is a wasteful number, since it uses less digits than its factorization.

245249156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275170 (or 275168 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 245249156 is about 15660.4328164965. The cubic root of 245249156 is about 625.9445183504.

The spelling of 245249156 in words is "two hundred forty-five million, two hundred forty-nine thousand, one hundred fifty-six".