1452242991 has 4 divisors (see below), whose sum is σ = 1936323992. Its totient is φ = 968161992.

The previous prime is 1452242959. The next prime is 1452243011. The reversal of 1452242991 is 1992422541.

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

It is not a de Polignac number, because 1452242991 - 2⁵ = 1452242959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452242951) 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, 242040496 + ... + 242040501.

It is an arithmetic number, because the mean of its divisors is an integer number (484080998).

Almost surely, 2^1452242991 is an apocalyptic number.

1452242991 is a deficient number, since it is larger than the sum of its proper divisors (484081001).

1452242991 is an equidigital number, since it uses as much as digits as its factorization.

1452242991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484081000.

The product of its digits is 51840, while the sum is 39.

The square root of 1452242991 is about 38108.3060631144. The cubic root of 1452242991 is about 1132.4345118533.

The spelling of 1452242991 in words is "one billion, four hundred fifty-two million, two hundred forty-two thousand, nine hundred ninety-one".