83020531 has 8 divisors (see below), whose sum is σ = 92777328. Its totient is φ = 73632000.

The previous prime is 83020529. The next prime is 83020541. The reversal of 83020531 is 13502038.

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 83020531 - 2¹ = 83020529 is a prime.

It is a super-2 number, since 2×83020531² = 13784817135043922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83020541) 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, 91590 + ... + 92491.

It is an arithmetic number, because the mean of its divisors is an integer number (11597166).

Almost surely, 2^83020531 is an apocalyptic number.

83020531 is a deficient number, since it is larger than the sum of its proper divisors (9756797).

83020531 is a wasteful number, since it uses less digits than its factorization.

83020531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184133.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 83020531 is about 9111.5602944830. The cubic root of 83020531 is about 436.2430311172.

Adding to 83020531 its reverse (13502038), we get a palindrome (96522569).

The spelling of 83020531 in words is "eighty-three million, twenty thousand, five hundred thirty-one".