148809647 has 8 divisors (see below), whose sum is σ = 171292800. Its totient is φ = 126632664.

The previous prime is 148809631. The next prime is 148809673. The reversal of 148809647 is 746908841.

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

It is a cyclic number.

It is not a de Polignac number, because 148809647 - 2⁴ = 148809631 is a prime.

It is a super-2 number, since 2×148809647² = 44288622080529218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148809047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75497 + ... + 77442.

It is an arithmetic number, because the mean of its divisors is an integer number (21411600).

Almost surely, 2^148809647 is an apocalyptic number.

148809647 is a deficient number, since it is larger than the sum of its proper divisors (22483153).

148809647 is a wasteful number, since it uses less digits than its factorization.

148809647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153085.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 148809647 is about 12198.7559611626. The cubic root of 148809647 is about 529.9200627038.

The spelling of 148809647 in words is "one hundred forty-eight million, eight hundred nine thousand, six hundred forty-seven".