72223148 has 6 divisors (see below), whose sum is σ = 126390516. Its totient is φ = 36111572.

The previous prime is 72223147. The next prime is 72223213. The reversal of 72223148 is 84132227.

It is a self number, because there is not a number n which added to its sum of digits gives 72223148.

It is not an unprimeable number, because it can be changed into a prime (72223147) by changing a digit.

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 as a sum of consecutive naturals, namely, 9027890 + ... + 9027897.

It is an arithmetic number, because the mean of its divisors is an integer number (21065086).

Almost surely, 2^72223148 is an apocalyptic number.

It is an amenable number.

72223148 is a deficient number, since it is larger than the sum of its proper divisors (54167368).

72223148 is a wasteful number, since it uses less digits than its factorization.

72223148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18055791 (or 18055789 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 72223148 is about 8498.4203238014. The cubic root of 72223148 is about 416.4461052047.

The spelling of 72223148 in words is "seventy-two million, two hundred twenty-three thousand, one hundred forty-eight".