147228249 has 16 divisors (see below), whose sum is σ = 226663808. Its totient is φ = 83261952.

The previous prime is 147228247. The next prime is 147228251. The reversal of 147228249 is 942822741.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (147228247) and next prime (147228251).

It is not a de Polignac number, because 147228249 - 2¹ = 147228247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147228247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34102 + ... + 38175.

It is an arithmetic number, because the mean of its divisors is an integer number (14166488).

Almost surely, 2^147228249 is an apocalyptic number.

It is an amenable number.

147228249 is a deficient number, since it is larger than the sum of its proper divisors (79435559).

147228249 is an equidigital number, since it uses as much as digits as its factorization.

147228249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72384.

The product of its digits is 64512, while the sum is 39.

The square root of 147228249 is about 12133.7648320709. The cubic root of 147228249 is about 528.0362226929.

The spelling of 147228249 in words is "one hundred forty-seven million, two hundred twenty-eight thousand, two hundred forty-nine".