1634045027 has 4 divisors (see below), whose sum is σ = 1634893176. Its totient is φ = 1633196880.

The previous prime is 1634045009. The next prime is 1634045029. The reversal of 1634045027 is 7205404361.

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

It is a cyclic number.

It is not a de Polignac number, because 1634045027 - 2¹⁰ = 1634044003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1634044984 and 1634045002.

It is not an unprimeable number, because it can be changed into a prime (1634045029) 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, 421178 + ... + 425039.

It is an arithmetic number, because the mean of its divisors is an integer number (408723294).

Almost surely, 2^1634045027 is an apocalyptic number.

1634045027 is a deficient number, since it is larger than the sum of its proper divisors (848149).

1634045027 is an equidigital number, since it uses as much as digits as its factorization.

1634045027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848148.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1634045027 is about 40423.3228099819. The cubic root of 1634045027 is about 1177.8446307407.

Adding to 1634045027 its reverse (7205404361), we get a palindrome (8839449388).

The spelling of 1634045027 in words is "one billion, six hundred thirty-four million, forty-five thousand, twenty-seven".