147923128 has 8 divisors (see below), whose sum is σ = 277355880. Its totient is φ = 73961560.

The previous prime is 147923081. The next prime is 147923129. The reversal of 147923128 is 821329741.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147923129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9245188 + ... + 9245203.

It is an arithmetic number, because the mean of its divisors is an integer number (34669485).

Almost surely, 2^147923128 is an apocalyptic number.

It is an amenable number.

147923128 is a deficient number, since it is larger than the sum of its proper divisors (129432752).

147923128 is a wasteful number, since it uses less digits than its factorization.

147923128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18490397 (or 18490393 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 147923128 is about 12162.3652304969. The cubic root of 147923128 is about 528.8656503245.

The spelling of 147923128 in words is "one hundred forty-seven million, nine hundred twenty-three thousand, one hundred twenty-eight".