103643261 has 8 divisors (see below), whose sum is σ = 107937024. Its totient is φ = 99408960.

The previous prime is 103643251. The next prime is 103643263. The reversal of 103643261 is 162346301.

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

It is a cyclic number.

It is not a de Polignac number, because 103643261 - 2¹⁰ = 103642237 is a prime.

It is a super-3 number, since 3×103643261³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103643261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103643263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11291 + ... + 18296.

It is an arithmetic number, because the mean of its divisors is an integer number (13492128).

Almost surely, 2^103643261 is an apocalyptic number.

It is an amenable number.

103643261 is a deficient number, since it is larger than the sum of its proper divisors (4293763).

103643261 is a wasteful number, since it uses less digits than its factorization.

103643261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29731.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 103643261 is about 10180.5334339611. The cubic root of 103643261 is about 469.7286210629.

Adding to 103643261 its reverse (162346301), we get a palindrome (265989562).

The spelling of 103643261 in words is "one hundred three million, six hundred forty-three thousand, two hundred sixty-one".