1948345523 has 4 divisors (see below), whose sum is σ = 1993655928. Its totient is φ = 1903035120.

The previous prime is 1948345513. The next prime is 1948345573. The reversal of 1948345523 is 3255438491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3255438491 = 10753 ⋅302747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1948345523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1948345513) 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, 22655138 + ... + 22655223.

It is an arithmetic number, because the mean of its divisors is an integer number (498413982).

Almost surely, 2^1948345523 is an apocalyptic number.

1948345523 is a deficient number, since it is larger than the sum of its proper divisors (45310405).

1948345523 is an equidigital number, since it uses as much as digits as its factorization.

1948345523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45310404.

The product of its digits is 518400, while the sum is 44.

The square root of 1948345523 is about 44140.0670932884. The cubic root of 1948345523 is about 1248.9795454046.

The spelling of 1948345523 in words is "one billion, nine hundred forty-eight million, three hundred forty-five thousand, five hundred twenty-three".