1452261189605 has 4 divisors (see below), whose sum is σ = 1742713427532. Its totient is φ = 1161808951680.

The previous prime is 1452261189593. The next prime is 1452261189649. The reversal of 1452261189605 is 5069811622541.

It is a Cunningham number, because it is equal to 1205098²+1.

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 522812871364 + 929448318241 = 723058^2 + 964079^2 .

It is not a de Polignac number, because 1452261189605 - 2⁶ = 1452261189541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145226118956 + ... + 145226118965.

It is an arithmetic number, because the mean of its divisors is an integer number (435678356883).

Almost surely, 2^{1452261189605} is an apocalyptic number.

It is an amenable number.

1452261189605 is a deficient number, since it is larger than the sum of its proper divisors (290452237927).

1452261189605 is an equidigital number, since it uses as much as digits as its factorization.

1452261189605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290452237926.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 1452261189605 in words is "one trillion, four hundred fifty-two billion, two hundred sixty-one million, one hundred eighty-nine thousand, six hundred five".