147999120 has 80 divisors (see below), whose sum is σ = 469499712. Its totient is φ = 38545920.

The previous prime is 147999119. The next prime is 147999143. The reversal of 147999120 is 21999741.

It is a tau number, because it is divible by the number of its divisors (80).

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, 3150 + ... + 17490.

Almost surely, 2^147999120 is an apocalyptic number.

147999120 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 147999120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234749856).

147999120 is an abundant number, since it is smaller than the sum of its proper divisors (321500592).

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

147999120 is a wasteful number, since it uses less digits than its factorization.

147999120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14400 (or 14394 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 147999120 is about 12165.4888927655. The cubic root of 147999120 is about 528.9561988836.

The spelling of 147999120 in words is "one hundred forty-seven million, nine hundred ninety-nine thousand, one hundred twenty".