1634051317 has 4 divisors (see below), whose sum is σ = 1634387500. Its totient is φ = 1633715136.

The previous prime is 1634051311. The next prime is 1634051359. The reversal of 1634051317 is 7131504361.

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 322597521 + 1311453796 = 17961^2 + 36214^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634051317 - 2⁷ = 1634051189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634051311) 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, 160692 + ... + 170557.

It is an arithmetic number, because the mean of its divisors is an integer number (408596875).

Almost surely, 2^1634051317 is an apocalyptic number.

It is an amenable number.

1634051317 is a deficient number, since it is larger than the sum of its proper divisors (336183).

1634051317 is an equidigital number, since it uses as much as digits as its factorization.

1634051317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336182.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1634051317 is about 40423.4006115270. The cubic root of 1634051317 is about 1177.8461420482.

Adding to 1634051317 its reverse (7131504361), we get a palindrome (8765555678).

The spelling of 1634051317 in words is "one billion, six hundred thirty-four million, fifty-one thousand, three hundred seventeen".