147472138 has 16 divisors (see below), whose sum is σ = 243316800. Its totient is φ = 67031580.

The previous prime is 147472133. The next prime is 147472147. The reversal of 147472138 is 831274741.

It is a junction number, because it is equal to n+sod(n) for n = 147472097 and 147472106.

It is not an unprimeable number, because it can be changed into a prime (147472133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25038 + ... + 30361.

It is an arithmetic number, because the mean of its divisors is an integer number (15207300).

Almost surely, 2^147472138 is an apocalyptic number.

147472138 is a deficient number, since it is larger than the sum of its proper divisors (95844662).

147472138 is an equidigital number, since it uses as much as digits as its factorization.

147472138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55434 (or 55412 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 147472138 is about 12143.8106869302. The cubic root of 147472138 is about 528.3276323051.

The spelling of 147472138 in words is "one hundred forty-seven million, four hundred seventy-two thousand, one hundred thirty-eight".