1452320231 has 4 divisors (see below), whose sum is σ = 1452397464. Its totient is φ = 1452243000.

The previous prime is 1452320173. The next prime is 1452320237. The reversal of 1452320231 is 1320232541.

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 not a de Polignac number, because 1452320231 - 2²⁶ = 1385211367 is a prime.

It is a super-2 number, since 2×1452320231² = 4218468106743786722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1452320197 and 1452320206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452320237) 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, 9956 + ... + 54806.

It is an arithmetic number, because the mean of its divisors is an integer number (363099366).

Almost surely, 2^1452320231 is an apocalyptic number.

1452320231 is a deficient number, since it is larger than the sum of its proper divisors (77233).

1452320231 is an equidigital number, since it uses as much as digits as its factorization.

1452320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77232.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1452320231 is about 38109.3194769993. The cubic root of 1452320231 is about 1132.4545883124.

Adding to 1452320231 its reverse (1320232541), we get a palindrome (2772552772).

The spelling of 1452320231 in words is "one billion, four hundred fifty-two million, three hundred twenty thousand, two hundred thirty-one".