147228938 has 4 divisors (see below), whose sum is σ = 220843410. Its totient is φ = 73614468.

The previous prime is 147228931. The next prime is 147228953. The reversal of 147228938 is 839822741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 143592289 + 3636649 = 11983^2 + 1907^2 .

It is not an unprimeable number, because it can be changed into a prime (147228931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36807233 + ... + 36807236.

Almost surely, 2^147228938 is an apocalyptic number.

147228938 is a deficient number, since it is larger than the sum of its proper divisors (73614472).

147228938 is an equidigital number, since it uses as much as digits as its factorization.

147228938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73614471.

The product of its digits is 193536, while the sum is 44.

The square root of 147228938 is about 12133.7932238851. The cubic root of 147228938 is about 528.0370463944.

The spelling of 147228938 in words is "one hundred forty-seven million, two hundred twenty-eight thousand, nine hundred thirty-eight".