146242739 has 2 divisors, whose sum is σ = 146242740. Its totient is φ = 146242738.

The previous prime is 146242727. The next prime is 146242771. The reversal of 146242739 is 937242641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146242739 - 2¹² = 146238643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146242939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73121369 + 73121370.

It is an arithmetic number, because the mean of its divisors is an integer number (73121370).

Almost surely, 2^146242739 is an apocalyptic number.

146242739 is a deficient number, since it is larger than the sum of its proper divisors (1).

146242739 is an equidigital number, since it uses as much as digits as its factorization.

146242739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 146242739 is about 12093.0864133190. The cubic root of 146242739 is about 526.8554021446.

The spelling of 146242739 in words is "one hundred forty-six million, two hundred forty-two thousand, seven hundred thirty-nine".