148771478 has 8 divisors (see below), whose sum is σ = 223311168. Its totient is φ = 74334424.

The previous prime is 148771459. The next prime is 148771481. The reversal of 148771478 is 874177841.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21926 + ... + 27897.

It is an arithmetic number, because the mean of its divisors is an integer number (27913896).

Almost surely, 2^148771478 is an apocalyptic number.

148771478 is a deficient number, since it is larger than the sum of its proper divisors (74539690).

148771478 is a wasteful number, since it uses less digits than its factorization.

148771478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51318.

The product of its digits is 351232, while the sum is 47.

The square root of 148771478 is about 12197.1913980227. The cubic root of 148771478 is about 529.8747514647.

The spelling of 148771478 in words is "one hundred forty-eight million, seven hundred seventy-one thousand, four hundred seventy-eight".