148236905 has 8 divisors (see below), whose sum is σ = 177957384. Its totient is φ = 118540800.

The previous prime is 148236857. The next prime is 148236929. The reversal of 148236905 is 509632841.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36638809 + 111598096 = 6053^2 + 10564^2 .

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

It is not a de Polignac number, because 148236905 - 2¹⁰ = 148235881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12395 + ... + 21215.

It is an arithmetic number, because the mean of its divisors is an integer number (22244673).

Almost surely, 2^148236905 is an apocalyptic number.

It is an amenable number.

148236905 is a deficient number, since it is larger than the sum of its proper divisors (29720479).

148236905 is an equidigital number, since it uses as much as digits as its factorization.

148236905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12187.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 148236905 is about 12175.2579028126. The cubic root of 148236905 is about 529.2393324339.

The spelling of 148236905 in words is "one hundred forty-eight million, two hundred thirty-six thousand, nine hundred five".