7145023 has 4 divisors (see below), whose sum is σ = 7151760. Its totient is φ = 7138288.

The previous prime is 7145011. The next prime is 7145041. The reversal of 7145023 is 3205417.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7145023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7144985 and 7145003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7145003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390 + ... + 4027.

It is an arithmetic number, because the mean of its divisors is an integer number (1787940).

Almost surely, 2^7145023 is an apocalyptic number.

7145023 is a deficient number, since it is larger than the sum of its proper divisors (6737).

7145023 is a wasteful number, since it uses less digits than its factorization.

7145023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 7145023 is about 2673.0175831820. The cubic root of 7145023 is about 192.6051418648.

The spelling of 7145023 in words is "seven million, one hundred forty-five thousand, twenty-three".