1641635103 has 16 divisors (see below), whose sum is σ = 2278235520. Its totient is φ = 1050192864.

The previous prime is 1641635087. The next prime is 1641635117. The reversal of 1641635103 is 3015361461.

It is not a de Polignac number, because 1641635103 - 2⁴ = 1641635087 is a prime.

It is a super-2 number, since 2×1641635103² = 5389931622803641218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641635003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43701 + ... + 72062.

It is an arithmetic number, because the mean of its divisors is an integer number (142389720).

Almost surely, 2^1641635103 is an apocalyptic number.

1641635103 is a deficient number, since it is larger than the sum of its proper divisors (636600417).

1641635103 is a wasteful number, since it uses less digits than its factorization.

1641635103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115958.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1641635103 is about 40517.0964285448. The cubic root of 1641635103 is about 1179.6654952923.

Adding to 1641635103 its reverse (3015361461), we get a palindrome (4656996564).

The spelling of 1641635103 in words is "one billion, six hundred forty-one million, six hundred thirty-five thousand, one hundred three".