148632447 has 4 divisors (see below), whose sum is σ = 198176600. Its totient is φ = 99088296.

The previous prime is 148632439. The next prime is 148632457. The reversal of 148632447 is 744236841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744236841 = 3 ⋅248078947.

It is not a de Polignac number, because 148632447 - 2³ = 148632439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148632437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24772072 + ... + 24772077.

It is an arithmetic number, because the mean of its divisors is an integer number (49544150).

Almost surely, 2^148632447 is an apocalyptic number.

148632447 is a deficient number, since it is larger than the sum of its proper divisors (49544153).

148632447 is an equidigital number, since it uses as much as digits as its factorization.

148632447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49544152.

The product of its digits is 129024, while the sum is 39.

The square root of 148632447 is about 12191.4907620028. The cubic root of 148632447 is about 529.7096392222.

It can be divided in two parts, 1486 and 32447, that added together give a palindrome (33933).

The spelling of 148632447 in words is "one hundred forty-eight million, six hundred thirty-two thousand, four hundred forty-seven".