147228937 has 4 divisors (see below), whose sum is σ = 149302656. Its totient is φ = 145155220.

The previous prime is 147228931. The next prime is 147228953. The reversal of 147228937 is 739822741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147228937 - 2²³ = 138840329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147228893 and 147228902.

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 in 3 ways as a sum of consecutive naturals, for example, 1036753 + ... + 1036894.

It is an arithmetic number, because the mean of its divisors is an integer number (37325664).

Almost surely, 2^147228937 is an apocalyptic number.

It is an amenable number.

147228937 is a deficient number, since it is larger than the sum of its proper divisors (2073719).

147228937 is an equidigital number, since it uses as much as digits as its factorization.

147228937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073718.

The product of its digits is 169344, while the sum is 43.

The square root of 147228937 is about 12133.7931826779. The cubic root of 147228937 is about 528.0370451989.

The spelling of 147228937 in words is "one hundred forty-seven million, two hundred twenty-eight thousand, nine hundred thirty-seven".