147428229 has 16 divisors (see below), whose sum is σ = 220897152. Its totient is φ = 86779968.

The previous prime is 147428227. The next prime is 147428269. The reversal of 147428229 is 922824741.

It is a happy number.

It is not a de Polignac number, because 147428229 - 2¹ = 147428227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147428221) 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, 81282 + ... + 83075.

It is an arithmetic number, because the mean of its divisors is an integer number (13806072).

Almost surely, 2^147428229 is an apocalyptic number.

It is an amenable number.

147428229 is a deficient number, since it is larger than the sum of its proper divisors (73468923).

147428229 is a wasteful number, since it uses less digits than its factorization.

147428229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164396.

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

The square root of 147428229 is about 12142.0026766592. The cubic root of 147428229 is about 528.2751915727.

The spelling of 147428229 in words is "one hundred forty-seven million, four hundred twenty-eight thousand, two hundred twenty-nine".