147278672 has 20 divisors (see below), whose sum is σ = 285541620. Its totient is φ = 73590528.

The previous prime is 147278653. The next prime is 147278687. The reversal of 147278672 is 276872741.

It can be written as a sum of positive squares in 2 ways, for example, as 144096016 + 3182656 = 12004^2 + 1784^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41978 + ... + 45350.

It is an arithmetic number, because the mean of its divisors is an integer number (14277081).

Almost surely, 2^147278672 is an apocalyptic number.

It is an amenable number.

147278672 is a deficient number, since it is larger than the sum of its proper divisors (138262948).

147278672 is a wasteful number, since it uses less digits than its factorization.

147278672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110 (or 6104 counting only the distinct ones).

The product of its digits is 263424, while the sum is 44.

The square root of 147278672 is about 12135.8424511857. The cubic root of 147278672 is about 528.0964967496.

The spelling of 147278672 in words is "one hundred forty-seven million, two hundred seventy-eight thousand, six hundred seventy-two".