7148231 has 4 divisors (see below), whose sum is σ = 7159992. Its totient is φ = 7136472.

The previous prime is 7148203. The next prime is 7148243. The reversal of 7148231 is 1328417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7148231 - 2¹⁴ = 7131847 is a prime.

It is a super-2 number, since 2×7148231² = 102194412858722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7148231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7148201) 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, 4916 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (1789998).

Almost surely, 2^7148231 is an apocalyptic number.

7148231 is a deficient number, since it is larger than the sum of its proper divisors (11761).

7148231 is a wasteful number, since it uses less digits than its factorization.

7148231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11760.

The product of its digits is 1344, while the sum is 26.

The square root of 7148231 is about 2673.6175867165. The cubic root of 7148231 is about 192.6339630851.

The spelling of 7148231 in words is "seven million, one hundred forty-eight thousand, two hundred thirty-one".