1814135545 has 4 divisors (see below), whose sum is σ = 2176962660. Its totient is φ = 1451308432.

The previous prime is 1814135527. The next prime is 1814135579. The reversal of 1814135545 is 5455314181.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1045293561 + 768841984 = 32331^2 + 27728^2 .

It is a cyclic number.

It is not a de Polignac number, because 1814135545 - 2¹⁷ = 1814004473 is a prime.

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, 181413550 + ... + 181413559.

It is an arithmetic number, because the mean of its divisors is an integer number (544240665).

Almost surely, 2^1814135545 is an apocalyptic number.

It is an amenable number.

1814135545 is a deficient number, since it is larger than the sum of its proper divisors (362827115).

1814135545 is an equidigital number, since it uses as much as digits as its factorization.

1814135545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362827114.

The product of its digits is 48000, while the sum is 37.

The square root of 1814135545 is about 42592.6700853562. The cubic root of 1814135545 is about 1219.6163680017.

The spelling of 1814135545 in words is "one billion, eight hundred fourteen million, one hundred thirty-five thousand, five hundred forty-five".