146800139 has 2 divisors, whose sum is σ = 146800140. Its totient is φ = 146800138.

The previous prime is 146800079. The next prime is 146800163. The reversal of 146800139 is 931008641.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (931008641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146800139 - 2⁸ = 146799883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146800039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73400069 + 73400070.

It is an arithmetic number, because the mean of its divisors is an integer number (73400070).

Almost surely, 2^146800139 is an apocalyptic number.

146800139 is a deficient number, since it is larger than the sum of its proper divisors (1).

146800139 is an equidigital number, since it uses as much as digits as its factorization.

146800139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 146800139 is about 12116.1107208543. The cubic root of 146800139 is about 527.5239182644.

The spelling of 146800139 in words is "one hundred forty-six million, eight hundred thousand, one hundred thirty-nine".