147381229 has 2 divisors, whose sum is σ = 147381230. Its totient is φ = 147381228.

The previous prime is 147381203. The next prime is 147381251. The reversal of 147381229 is 922183741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139287204 + 8094025 = 11802^2 + 2845^2 .

It is an emirp because it is prime and its reverse (922183741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147381229 - 2⁵ = 147381197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147381029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73690614 + 73690615.

It is an arithmetic number, because the mean of its divisors is an integer number (73690615).

Almost surely, 2^147381229 is an apocalyptic number.

It is an amenable number.

147381229 is a deficient number, since it is larger than the sum of its proper divisors (1).

147381229 is an equidigital number, since it uses as much as digits as its factorization.

147381229 is an evil number, because the sum of its binary digits is even.

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

The square root of 147381229 is about 12140.0670920716. The cubic root of 147381229 is about 528.2190477050.

The spelling of 147381229 in words is "one hundred forty-seven million, three hundred eighty-one thousand, two hundred twenty-nine".