148257647 has 4 divisors (see below), whose sum is σ = 148282680. Its totient is φ = 148232616.

The previous prime is 148257623. The next prime is 148257649. The reversal of 148257647 is 746752841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148257647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148257598 and 148257607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148257649) 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 3 ways as a sum of consecutive naturals, for example, 1913 + ... + 17325.

It is an arithmetic number, because the mean of its divisors is an integer number (37070670).

Almost surely, 2^148257647 is an apocalyptic number.

148257647 is a deficient number, since it is larger than the sum of its proper divisors (25033).

148257647 is an equidigital number, since it uses as much as digits as its factorization.

148257647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25032.

The product of its digits is 376320, while the sum is 44.

The square root of 148257647 is about 12176.1096824889. The cubic root of 148257647 is about 529.2640158290.

The spelling of 148257647 in words is "one hundred forty-eight million, two hundred fifty-seven thousand, six hundred forty-seven".