1613220634 has 8 divisors (see below), whose sum is σ = 2425081428. Its totient is φ = 804860160.

The previous prime is 1613220629. The next prime is 1613220641. The reversal of 1613220634 is 4360223161.

It can be written as a sum of positive squares in 2 ways, for example, as 1568397609 + 44823025 = 39603^2 + 6695^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 873927 + ... + 875770.

Almost surely, 2^1613220634 is an apocalyptic number.

1613220634 is a deficient number, since it is larger than the sum of its proper divisors (811860794).

1613220634 is a wasteful number, since it uses less digits than its factorization.

1613220634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750160.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1613220634 is about 40164.9179508685. The cubic root of 1613220634 is about 1172.8197103249.

Adding to 1613220634 its reverse (4360223161), we get a palindrome (5973443795).

The spelling of 1613220634 in words is "one billion, six hundred thirteen million, two hundred twenty thousand, six hundred thirty-four".