147994128 has 50 divisors (see below), whose sum is σ = 428341694. Its totient is φ = 49330944.

The previous prime is 147994127. The next prime is 147994177. The reversal of 147994128 is 821499741.

It is a happy number.

147994128 is a `hidden beast` number, since 147 + 99 + 412 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 142850304 + 5143824 = 11952^2 + 2268^2 .

It is a super-3 number, since 3×147994128³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (147994123) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 55801 + ... + 58392.

Almost surely, 2^147994128 is an apocalyptic number.

147994128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

147994128 is an abundant number, since it is smaller than the sum of its proper divisors (280347566).

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

147994128 is a wasteful number, since it uses less digits than its factorization.

147994128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114213 (or 114198 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 147994128 is about 12165.2837204892. The cubic root of 147994128 is about 528.9502515982.

The spelling of 147994128 in words is "one hundred forty-seven million, nine hundred ninety-four thousand, one hundred twenty-eight".