1452890081 has 4 divisors (see below), whose sum is σ = 1529358000. Its totient is φ = 1376422164.

The previous prime is 1452889979. The next prime is 1452890083. The reversal of 1452890081 is 1800982541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1452890081 - 2¹⁸ = 1452627937 is a prime.

It is a super-2 number, since 2×1452890081² = 4221779174936373122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452890083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38233931 + ... + 38233968.

It is an arithmetic number, because the mean of its divisors is an integer number (382339500).

Almost surely, 2^1452890081 is an apocalyptic number.

It is an amenable number.

1452890081 is a deficient number, since it is larger than the sum of its proper divisors (76467919).

1452890081 is an equidigital number, since it uses as much as digits as its factorization.

1452890081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76467918.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 1452890081 is about 38116.7952614067. The cubic root of 1452890081 is about 1132.6026834888.

The spelling of 1452890081 in words is "one billion, four hundred fifty-two million, eight hundred ninety thousand, eighty-one".