1453445443 has 4 divisors (see below), whose sum is σ = 1454505408. Its totient is φ = 1452385480.

The previous prime is 1453445423. The next prime is 1453445479. The reversal of 1453445443 is 3445443541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3445443541 = 61 ⋅56482681.

It is a cyclic number.

It is not a de Polignac number, because 1453445443 - 2⁹ = 1453444931 is a prime.

It is a super-2 number, since 2×1453445443² = 4225007311554932498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1453445423) 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, 527923 + ... + 530668.

It is an arithmetic number, because the mean of its divisors is an integer number (363626352).

Almost surely, 2^1453445443 is an apocalyptic number.

1453445443 is a deficient number, since it is larger than the sum of its proper divisors (1059965).

1453445443 is a wasteful number, since it uses less digits than its factorization.

1453445443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059964.

The product of its digits is 230400, while the sum is 37.

The square root of 1453445443 is about 38124.0795692171. The cubic root of 1453445443 is about 1132.7469762039.

Adding to 1453445443 its reverse (3445443541), we get a palindrome (4898888984).

The spelling of 1453445443 in words is "one billion, four hundred fifty-three million, four hundred forty-five thousand, four hundred forty-three".