7312563 has 12 divisors (see below), whose sum is σ = 10598328. Its totient is φ = 4858560.

The previous prime is 7312561. The next prime is 7312583. The reversal of 7312563 is 3652137.

It is a happy number.

It is not a de Polignac number, because 7312563 - 2¹ = 7312561 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7312561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1828 + ... + 4238.

It is an arithmetic number, because the mean of its divisors is an integer number (883194).

Almost surely, 2^7312563 is an apocalyptic number.

7312563 is a deficient number, since it is larger than the sum of its proper divisors (3285765).

7312563 is a wasteful number, since it uses less digits than its factorization.

7312563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754 (or 2751 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 7312563 is about 2704.1751052770. The cubic root of 7312563 is about 194.0989593256.

It can be divided in two parts, 7312 and 563, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 7312563 in words is "seven million, three hundred twelve thousand, five hundred sixty-three".