148429881 has 32 divisors (see below), whose sum is σ = 237148800. Its totient is φ = 91445760.

The previous prime is 148429877. The next prime is 148429889. The reversal of 148429881 is 188924841.

148429881 is a `hidden beast` number, since 1 + 484 + 2 + 98 + 81 = 666.

148429881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 148429881 - 2² = 148429877 is a prime.

It is a super-2 number, since 2×148429881² = 44062859147348322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148429889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17505 + ... + 24561.

It is an arithmetic number, because the mean of its divisors is an integer number (7410900).

Almost surely, 2^148429881 is an apocalyptic number.

It is an amenable number.

148429881 is a deficient number, since it is larger than the sum of its proper divisors (88718919).

148429881 is a wasteful number, since it uses less digits than its factorization.

148429881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7126 (or 7120 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 148429881 is about 12183.1802498362. The cubic root of 148429881 is about 529.4688888622.

The spelling of 148429881 in words is "one hundred forty-eight million, four hundred twenty-nine thousand, eight hundred eighty-one".