7123253 has 4 divisors (see below), whose sum is σ = 7257708. Its totient is φ = 6988800.

The previous prime is 7123231. The next prime is 7123279. The reversal of 7123253 is 3523217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3523217 = 383 ⋅9199.

It can be written as a sum of positive squares in 2 ways, for example, as 4695889 + 2427364 = 2167^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 7123253 - 2¹⁶ = 7057717 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7123213) 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, 67148 + ... + 67253.

It is an arithmetic number, because the mean of its divisors is an integer number (1814427).

Almost surely, 2^7123253 is an apocalyptic number.

It is an amenable number.

7123253 is a deficient number, since it is larger than the sum of its proper divisors (134455).

7123253 is a wasteful number, since it uses less digits than its factorization.

7123253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134454.

The product of its digits is 1260, while the sum is 23.

The square root of 7123253 is about 2668.9422998634. The cubic root of 7123253 is about 192.4093281871.

The spelling of 7123253 in words is "seven million, one hundred twenty-three thousand, two hundred fifty-three".