82144537 has 2 divisors, whose sum is σ = 82144538. Its totient is φ = 82144536.

The previous prime is 82144529. The next prime is 82144549. The reversal of 82144537 is 73544128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75672601 + 6471936 = 8699^2 + 2544^2 .

It is a cyclic number.

It is not a de Polignac number, because 82144537 - 2³ = 82144529 is a prime.

It is not a weakly prime, because it can be changed into another prime (82144837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41072268 + 41072269.

It is an arithmetic number, because the mean of its divisors is an integer number (41072269).

Almost surely, 2^82144537 is an apocalyptic number.

It is an amenable number.

82144537 is a deficient number, since it is larger than the sum of its proper divisors (1).

82144537 is an equidigital number, since it uses as much as digits as its factorization.

82144537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 82144537 is about 9063.3623451785. The cubic root of 82144537 is about 434.7032582260.

The spelling of 82144537 in words is "eighty-two million, one hundred forty-four thousand, five hundred thirty-seven".