147253428 has 54 divisors (see below), whose sum is σ = 433000386. Its totient is φ = 42071904.

The previous prime is 147253399. The next prime is 147253453. The reversal of 147253428 is 824352741.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 144288144 + 2965284 = 12012^2 + 1722^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 147253392 and 147253401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39975 + ... + 43502.

Almost surely, 2^147253428 is an apocalyptic number.

147253428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

147253428 is an abundant number, since it is smaller than the sum of its proper divisors (285746958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147253428 is a wasteful number, since it uses less digits than its factorization.

147253428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83501 (or 83489 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 147253428 is about 12134.8023469688. The cubic root of 147253428 is about 528.0663225917.

The spelling of 147253428 in words is "one hundred forty-seven million, two hundred fifty-three thousand, four hundred twenty-eight".