1454345878 has 4 divisors (see below), whose sum is σ = 2181518820. Its totient is φ = 727172938.

The previous prime is 1454345857. The next prime is 1454345909. The reversal of 1454345878 is 8785434541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8785434541 = 13 ⋅675802657.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363586468 + ... + 363586471.

It is an arithmetic number, because the mean of its divisors is an integer number (545379705).

Almost surely, 2^1454345878 is an apocalyptic number.

1454345878 is a deficient number, since it is larger than the sum of its proper divisors (727172942).

1454345878 is an equidigital number, since it uses as much as digits as its factorization.

1454345878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727172941.

The product of its digits is 2150400, while the sum is 49.

The square root of 1454345878 is about 38135.8870094823. The cubic root of 1454345878 is about 1132.9808468025.

The spelling of 1454345878 in words is "one billion, four hundred fifty-four million, three hundred forty-five thousand, eight hundred seventy-eight".