3634122257 has 4 divisors (see below), whose sum is σ = 3652952100. Its totient is φ = 3615292416.

The previous prime is 3634122241. The next prime is 3634122263. The reversal of 3634122257 is 7522214363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7522214363 = 41 ⋅183468643.

It can be written as a sum of positive squares in 2 ways, for example, as 1086295681 + 2547826576 = 32959^2 + 50476^2 .

It is a cyclic number.

It is not a de Polignac number, because 3634122257 - 2⁴ = 3634122241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3634122757) 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, 9414632 + ... + 9415017.

It is an arithmetic number, because the mean of its divisors is an integer number (913238025).

Almost surely, 2^3634122257 is an apocalyptic number.

It is an amenable number.

3634122257 is a deficient number, since it is larger than the sum of its proper divisors (18829843).

3634122257 is a wasteful number, since it uses less digits than its factorization.

3634122257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18829842.

The product of its digits is 60480, while the sum is 35.

The square root of 3634122257 is about 60283.6815149838. The cubic root of 3634122257 is about 1537.4459065024.

The spelling of 3634122257 in words is "three billion, six hundred thirty-four million, one hundred twenty-two thousand, two hundred fifty-seven".