148681494 has 96 divisors (see below), whose sum is σ = 364893984. Its totient is φ = 45100800.

The previous prime is 148681471. The next prime is 148681513. The reversal of 148681494 is 494186841.

148681494 is a `hidden beast` number, since 1 + 4 + 86 + 81 + 494 = 666.

148681494 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 47 ways as a sum of consecutive naturals, for example, 638002 + ... + 638234.

It is an arithmetic number, because the mean of its divisors is an integer number (3800979).

Almost surely, 2^148681494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148681494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182446992).

148681494 is an abundant number, since it is smaller than the sum of its proper divisors (216212490).

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

148681494 is a wasteful number, since it uses less digits than its factorization.

148681494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 352 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 148681494 is about 12193.5021220320. The cubic root of 148681494 is about 529.7678988462.

The spelling of 148681494 in words is "one hundred forty-eight million, six hundred eighty-one thousand, four hundred ninety-four".