7148386215 has 32 divisors (see below), whose sum is σ = 12820731840. Its totient is φ = 3778725888.

The previous prime is 7148386213. The next prime is 7148386229. The reversal of 7148386215 is 5126838417.

7148386215 is a `hidden beast` number, since 7 + 14 + 8 + 3 + 8 + 621 + 5 = 666.

It is not a de Polignac number, because 7148386215 - 2¹ = 7148386213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7148386211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219042 + ... + 249551.

It is an arithmetic number, because the mean of its divisors is an integer number (400647870).

Almost surely, 2^7148386215 is an apocalyptic number.

7148386215 is a deficient number, since it is larger than the sum of its proper divisors (5672345625).

7148386215 is a wasteful number, since it uses less digits than its factorization.

7148386215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468720 (or 468714 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 7148386215 is about 84548.1295771823. The cubic root of 7148386215 is about 1926.3535734449.

The spelling of 7148386215 in words is "seven billion, one hundred forty-eight million, three hundred eighty-six thousand, two hundred fifteen".