148138446 has 32 divisors (see below), whose sum is σ = 309795840. Its totient is φ = 47135264.

The previous prime is 148138433. The next prime is 148138451. The reversal of 148138446 is 644831841.

148138446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98476 + ... + 99968.

It is an arithmetic number, because the mean of its divisors is an integer number (9681120).

Almost surely, 2^148138446 is an apocalyptic number.

148138446 is an abundant number, since it is smaller than the sum of its proper divisors (161657394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148138446 is a wasteful number, since it uses less digits than its factorization.

148138446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its digits is 73728, while the sum is 39.

The square root of 148138446 is about 12171.2138260734. The cubic root of 148138446 is about 529.1221328371.

The spelling of 148138446 in words is "one hundred forty-eight million, one hundred thirty-eight thousand, four hundred forty-six".