1454445515 has 4 divisors (see below), whose sum is σ = 1745334624. Its totient is φ = 1163556408.

The previous prime is 1454445463. The next prime is 1454445527. The reversal of 1454445515 is 5155444541.

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

It is a cyclic number.

It is not a de Polignac number, because 1454445515 - 2²⁰ = 1453396939 is a prime.

It is a super-2 number, since 2×1454445515² = 4230823512207230450, 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, 145444547 + ... + 145444556.

It is an arithmetic number, because the mean of its divisors is an integer number (436333656).

Almost surely, 2^1454445515 is an apocalyptic number.

1454445515 is a deficient number, since it is larger than the sum of its proper divisors (290889109).

1454445515 is an equidigital number, since it uses as much as digits as its factorization.

1454445515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290889108.

The product of its digits is 160000, while the sum is 38.

The square root of 1454445515 is about 38137.1933288227. The cubic root of 1454445515 is about 1133.0067196563.

The spelling of 1454445515 in words is "one billion, four hundred fifty-four million, four hundred forty-five thousand, five hundred fifteen".