1452036891 has 4 divisors (see below), whose sum is σ = 1936049192. Its totient is φ = 968024592.

The previous prime is 1452036841. The next prime is 1452036913. The reversal of 1452036891 is 1986302541.

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

It is not a de Polignac number, because 1452036891 - 2¹⁵ = 1452004123 is a prime.

It is a super-2 number, since 2×1452036891² = 4216822265649891762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452036811) 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, 242006146 + ... + 242006151.

It is an arithmetic number, because the mean of its divisors is an integer number (484012298).

Almost surely, 2^1452036891 is an apocalyptic number.

1452036891 is a deficient number, since it is larger than the sum of its proper divisors (484012301).

1452036891 is an equidigital number, since it uses as much as digits as its factorization.

1452036891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484012300.

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

The square root of 1452036891 is about 38105.6018322766. The cubic root of 1452036891 is about 1132.3809382213.

The spelling of 1452036891 in words is "one billion, four hundred fifty-two million, thirty-six thousand, eight hundred ninety-one".