82103501 has 4 divisors (see below), whose sum is σ = 83850432. Its totient is φ = 80356572.

The previous prime is 82103473. The next prime is 82103513. The reversal of 82103501 is 10530128.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82103501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82103521) 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, 873395 + ... + 873488.

It is an arithmetic number, because the mean of its divisors is an integer number (20962608).

Almost surely, 2^82103501 is an apocalyptic number.

It is an amenable number.

82103501 is a deficient number, since it is larger than the sum of its proper divisors (1746931).

82103501 is a wasteful number, since it uses less digits than its factorization.

82103501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746930.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 82103501 is about 9061.0982226218. The cubic root of 82103501 is about 434.6308596027.

Adding to 82103501 its reverse (10530128), we get a palindrome (92633629).

It can be divided in two parts, 8210 and 3501, that added together give a palindrome (11711).

The spelling of 82103501 in words is "eighty-two million, one hundred three thousand, five hundred one".