148438906 has 64 divisors (see below), whose sum is σ = 295787520. Its totient is φ = 54120960.

The previous prime is 148438879. The next prime is 148438921. The reversal of 148438906 is 609834841.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283561 + ... + 284083.

It is an arithmetic number, because the mean of its divisors is an integer number (4621680).

Almost surely, 2^148438906 is an apocalyptic number.

148438906 is a deficient number, since it is larger than the sum of its proper divisors (147348614).

148438906 is a wasteful number, since it uses less digits than its factorization.

148438906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 148438906 is about 12183.5506318971. The cubic root of 148438906 is about 529.4796197650.

The spelling of 148438906 in words is "one hundred forty-eight million, four hundred thirty-eight thousand, nine hundred six".