1452815897 has 4 divisors (see below), whose sum is σ = 1564570980. Its totient is φ = 1341060816.

The previous prime is 1452815891. The next prime is 1452815909. The reversal of 1452815897 is 7985182541.

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 654131776 + 798684121 = 25576^2 + 28261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1452815897 - 2⁸ = 1452815641 is a prime.

It is a super-2 number, since 2×1452815897² = 4221348061151829218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452815891) 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, 55877522 + ... + 55877547.

It is an arithmetic number, because the mean of its divisors is an integer number (391142745).

Almost surely, 2^1452815897 is an apocalyptic number.

It is an amenable number.

1452815897 is a deficient number, since it is larger than the sum of its proper divisors (111755083).

1452815897 is a wasteful number, since it uses less digits than its factorization.

1452815897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111755082.

The product of its digits is 806400, while the sum is 50.

The square root of 1452815897 is about 38115.8221346464. The cubic root of 1452815897 is about 1132.5834064105.

The spelling of 1452815897 in words is "one billion, four hundred fifty-two million, eight hundred fifteen thousand, eight hundred ninety-seven".