148889520 has 120 divisors (see below), whose sum is σ = 538517616. Its totient is φ = 36647424.

The previous prime is 148889513. The next prime is 148889551. The reversal of 148889520 is 25988841.

It is a happy number.

148889520 is a `hidden beast` number, since 1 + 48 + 8 + 89 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1407 + ... + 17313.

Almost surely, 2^148889520 is an apocalyptic number.

148889520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148889520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269258808).

148889520 is an abundant number, since it is smaller than the sum of its proper divisors (389628096).

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

148889520 is a wasteful number, since it uses less digits than its factorization.

148889520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15939 (or 15930 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 148889520 is about 12202.0293394173. The cubic root of 148889520 is about 530.0148565908.

The spelling of 148889520 in words is "one hundred forty-eight million, eight hundred eighty-nine thousand, five hundred twenty".