1814538541 has 4 divisors (see below), whose sum is σ = 1853145792. Its totient is φ = 1775931292.

The previous prime is 1814538533. The next prime is 1814538547. The reversal of 1814538541 is 1458354181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1814538541 - 2³ = 1814538533 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1814538494 and 1814538503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814538547) 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, 19303555 + ... + 19303648.

It is an arithmetic number, because the mean of its divisors is an integer number (463286448).

Almost surely, 2^1814538541 is an apocalyptic number.

It is an amenable number.

1814538541 is a deficient number, since it is larger than the sum of its proper divisors (38607251).

1814538541 is an equidigital number, since it uses as much as digits as its factorization.

1814538541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38607250.

The product of its digits is 76800, while the sum is 40.

The square root of 1814538541 is about 42597.4006366586. The cubic root of 1814538541 is about 1219.7066707228.

The spelling of 1814538541 in words is "one billion, eight hundred fourteen million, five hundred thirty-eight thousand, five hundred forty-one".