31464523 has 4 divisors (see below), whose sum is σ = 31997880. Its totient is φ = 30931168.

The previous prime is 31464509. The next prime is 31464547. The reversal of 31464523 is 32546413.

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 31464523 - 2¹³ = 31456331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31464491 and 31464500.

It is not an unprimeable number, because it can be changed into a prime (31461523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266590 + ... + 266707.

It is an arithmetic number, because the mean of its divisors is an integer number (7999470).

Almost surely, 2^31464523 is an apocalyptic number.

31464523 is a deficient number, since it is larger than the sum of its proper divisors (533357).

31464523 is an equidigital number, since it uses as much as digits as its factorization.

31464523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533356.

The product of its digits is 8640, while the sum is 28.

The square root of 31464523 is about 5609.3246474063. The cubic root of 31464523 is about 315.6993715930.

The spelling of 31464523 in words is "thirty-one million, four hundred sixty-four thousand, five hundred twenty-three".