7215442148 has 12 divisors (see below), whose sum is σ = 13176024960. Its totient is φ = 3450863592.

The previous prime is 7215442139. The next prime is 7215442151. The reversal of 7215442148 is 8412445127.

It is a super-2 number, since 2×7215442148² (a number of 21 digits) contains 22 as substring.

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, 39214268 + ... + 39214451.

It is an arithmetic number, because the mean of its divisors is an integer number (1098002080).

Almost surely, 2^7215442148 is an apocalyptic number.

It is an amenable number.

7215442148 is a deficient number, since it is larger than the sum of its proper divisors (5960582812).

7215442148 is a wasteful number, since it uses less digits than its factorization.

7215442148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78428746 (or 78428744 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 7215442148 is about 84943.7587348241. The cubic root of 7215442148 is about 1932.3582677141.

The spelling of 7215442148 in words is "seven billion, two hundred fifteen million, four hundred forty-two thousand, one hundred forty-eight".