82016531 has 8 divisors (see below), whose sum is σ = 85054944. Its totient is φ = 79021440.

The previous prime is 82016527. The next prime is 82016537. The reversal of 82016531 is 13561028.

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 82016531 - 2² = 82016527 is a prime.

It is a super-2 number, since 2×82016531² = 13453422714547922, which contains 22 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 82016531.

It is not an unprimeable number, because it can be changed into a prime (82016537) 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, 6950 + ... + 14571.

It is an arithmetic number, because the mean of its divisors is an integer number (10631868).

Almost surely, 2^82016531 is an apocalyptic number.

82016531 is a deficient number, since it is larger than the sum of its proper divisors (3038413).

82016531 is a wasteful number, since it uses less digits than its factorization.

82016531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21661.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 82016531 is about 9056.2978639177. The cubic root of 82016531 is about 434.4773411776.

Adding to 82016531 its reverse (13561028), we get a palindrome (95577559).

The spelling of 82016531 in words is "eighty-two million, sixteen thousand, five hundred thirty-one".