7148479 has 4 divisors (see below), whose sum is σ = 7698376. Its totient is φ = 6598584.

The previous prime is 7148461. The next prime is 7148489. The reversal of 7148479 is 9748417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9748417 = 7 ⋅1392631.

It is a cyclic number.

It is not a de Polignac number, because 7148479 - 2⁹ = 7147967 is a prime.

It is a super-2 number, since 2×7148479² = 102201504026882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7148419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274929 + ... + 274954.

It is an arithmetic number, because the mean of its divisors is an integer number (1924594).

Almost surely, 2^7148479 is an apocalyptic number.

7148479 is a deficient number, since it is larger than the sum of its proper divisors (549897).

7148479 is a wasteful number, since it uses less digits than its factorization.

7148479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549896.

The product of its digits is 56448, while the sum is 40.

The square root of 7148479 is about 2673.6639654227. The cubic root of 7148479 is about 192.6361908004.

The spelling of 7148479 in words is "seven million, one hundred forty-eight thousand, four hundred seventy-nine".