1453026985 has 4 divisors (see below), whose sum is σ = 1743632388. Its totient is φ = 1162421584.

The previous prime is 1453026977. The next prime is 1453027019. The reversal of 1453026985 is 5896203541.

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 337199769 + 1115827216 = 18363^2 + 33404^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453026985 - 2³ = 1453026977 is a prime.

It is a super-2 number, since 2×1453026985² = 4222574838276380450, which contains 22 as substring.

It is a Duffinian 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, 145302694 + ... + 145302703.

It is an arithmetic number, because the mean of its divisors is an integer number (435908097).

Almost surely, 2^1453026985 is an apocalyptic number.

It is an amenable number.

1453026985 is a deficient number, since it is larger than the sum of its proper divisors (290605403).

1453026985 is an equidigital number, since it uses as much as digits as its factorization.

1453026985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290605402.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 1453026985 is about 38118.5910678766. The cubic root of 1453026985 is about 1132.6382569456.

The spelling of 1453026985 in words is "one billion, four hundred fifty-three million, twenty-six thousand, nine hundred eighty-five".