84281051 has 2 divisors, whose sum is σ = 84281052. Its totient is φ = 84281050.

The previous prime is 84281027. The next prime is 84281063. The reversal of 84281051 is 15018248.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84281051 is a prime.

It is a super-3 number, since 3×84281051³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84281081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42140525 + 42140526.

It is an arithmetic number, because the mean of its divisors is an integer number (42140526).

Almost surely, 2^84281051 is an apocalyptic number.

84281051 is a deficient number, since it is larger than the sum of its proper divisors (1).

84281051 is an equidigital number, since it uses as much as digits as its factorization.

84281051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 84281051 is about 9180.4711752720. The cubic root of 84281051 is about 438.4398100265.

Adding to 84281051 its reverse (15018248), we get a palindrome (99299299).

The spelling of 84281051 in words is "eighty-four million, two hundred eighty-one thousand, fifty-one".