146028749 has 2 divisors, whose sum is σ = 146028750. Its totient is φ = 146028748.

The previous prime is 146028703. The next prime is 146028763. The reversal of 146028749 is 947820641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136726249 + 9302500 = 11693^2 + 3050^2 .

It is an emirp because it is prime and its reverse (947820641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146028749 - 2¹² = 146024653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146028769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73014374 + 73014375.

It is an arithmetic number, because the mean of its divisors is an integer number (73014375).

Almost surely, 2^146028749 is an apocalyptic number.

It is an amenable number.

146028749 is a deficient number, since it is larger than the sum of its proper divisors (1).

146028749 is an equidigital number, since it uses as much as digits as its factorization.

146028749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 146028749 is about 12084.2355571215. The cubic root of 146028749 is about 526.5983026060.

The spelling of 146028749 in words is "one hundred forty-six million, twenty-eight thousand, seven hundred forty-nine".