1452331145 has 4 divisors (see below), whose sum is σ = 1742797380. Its totient is φ = 1161864912.

The previous prime is 1452331129. The next prime is 1452331147. The reversal of 1452331145 is 5411332541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 955799056 + 496532089 = 30916^2 + 22283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1452331145 - 2⁴ = 1452331129 is a prime.

It is a super-2 number, since 2×1452331145² = 4218531509474022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1452331147) 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, 145233110 + ... + 145233119.

It is an arithmetic number, because the mean of its divisors is an integer number (435699345).

Almost surely, 2^1452331145 is an apocalyptic number.

It is an amenable number.

1452331145 is a deficient number, since it is larger than the sum of its proper divisors (290466235).

1452331145 is an equidigital number, since it uses as much as digits as its factorization.

1452331145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290466234.

The product of its digits is 7200, while the sum is 29.

The square root of 1452331145 is about 38109.4626700509. The cubic root of 1452331145 is about 1132.4574250555.

Adding to 1452331145 its reverse (5411332541), we get a palindrome (6863663686).

The spelling of 1452331145 in words is "one billion, four hundred fifty-two million, three hundred thirty-one thousand, one hundred forty-five".