82150903 has 4 divisors (see below), whose sum is σ = 82368040. Its totient is φ = 81933768.

The previous prime is 82150897. The next prime is 82150909. The reversal of 82150903 is 30905128.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (82150897) and next prime (82150909).

It is a cyclic number.

It is not a de Polignac number, because 82150903 - 2²¹ = 80053751 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 (82150909) 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, 108000 + ... + 108757.

It is an arithmetic number, because the mean of its divisors is an integer number (20592010).

Almost surely, 2^82150903 is an apocalyptic number.

82150903 is a deficient number, since it is larger than the sum of its proper divisors (217137).

82150903 is a wasteful number, since it uses less digits than its factorization.

82150903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217136.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 82150903 is about 9063.7135325428. The cubic root of 82150903 is about 434.7144874145.

The spelling of 82150903 in words is "eighty-two million, one hundred fifty thousand, nine hundred three".