245493147 has 8 divisors (see below), whose sum is σ = 327618640. Its totient is φ = 163514880.

The previous prime is 245493139. The next prime is 245493163. The reversal of 245493147 is 741394542.

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

It is not a de Polignac number, because 245493147 - 2³ = 245493139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245493047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32854 + ... + 39627.

It is an arithmetic number, because the mean of its divisors is an integer number (40952330).

Almost surely, 2^245493147 is an apocalyptic number.

245493147 is a deficient number, since it is larger than the sum of its proper divisors (82125493).

245493147 is a wasteful number, since it uses less digits than its factorization.

245493147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73613.

The product of its digits is 120960, while the sum is 39.

The square root of 245493147 is about 15668.2209264485. The cubic root of 245493147 is about 626.1520273348.

The spelling of 245493147 in words is "two hundred forty-five million, four hundred ninety-three thousand, one hundred forty-seven".