147397072 has 20 divisors (see below), whose sum is σ = 302381316. Its totient is φ = 69363200.

The previous prime is 147397043. The next prime is 147397093. The reversal of 147397072 is 270793741.

It can be written as a sum of positive squares in 2 ways, for example, as 40398736 + 106998336 = 6356^2 + 10344^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270679 + ... + 271222.

Almost surely, 2^147397072 is an apocalyptic number.

It is an amenable number.

147397072 is an abundant number, since it is smaller than the sum of its proper divisors (154984244).

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

147397072 is a wasteful number, since it uses less digits than its factorization.

147397072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541926 (or 541920 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 147397072 is about 12140.7195832867. The cubic root of 147397072 is about 528.2379743001.

The spelling of 147397072 in words is "one hundred forty-seven million, three hundred ninety-seven thousand, seventy-two".