84146057 has 2 divisors, whose sum is σ = 84146058. Its totient is φ = 84146056.

The previous prime is 84146021. The next prime is 84146071. The reversal of 84146057 is 75064148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69622336 + 14523721 = 8344^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 84146057 - 2¹² = 84141961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84146077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42073028 + 42073029.

It is an arithmetic number, because the mean of its divisors is an integer number (42073029).

Almost surely, 2^84146057 is an apocalyptic number.

It is an amenable number.

84146057 is a deficient number, since it is larger than the sum of its proper divisors (1).

84146057 is an equidigital number, since it uses as much as digits as its factorization.

84146057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 84146057 is about 9173.1159918536. The cubic root of 84146057 is about 438.2056001172.

The spelling of 84146057 in words is "eighty-four million, one hundred forty-six thousand, fifty-seven".