103631 has 4 divisors (see below), whose sum is σ = 113064. Its totient is φ = 94200.

The previous prime is 103619. The next prime is 103643. The reversal of 103631 is 136301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136301 = 11 ⋅12391.

It is an interprime number because it is at equal distance from previous prime (103619) and next prime (103643).

It is a cyclic number.

It is not a de Polignac number, because 103631 - 2⁶ = 103567 is a prime.

It is a super-3 number, since 3×103631³ = 3338799359965773, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103631.

It is not an unprimeable number, because it can be changed into a prime (103651) 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, 4700 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (28266).

2¹⁰³⁶³¹ is an apocalyptic number.

103631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103631 is a deficient number, since it is larger than the sum of its proper divisors (9433).

103631 is an equidigital number, since it uses as much as digits as its factorization.

103631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 103631 is about 321.9176913436. The cubic root of 103631 is about 46.9710097364.

Adding to 103631 its reverse (136301), we get a palindrome (239932).

The spelling of 103631 in words is "one hundred three thousand, six hundred thirty-one".