146248649 has 2 divisors, whose sum is σ = 146248650. Its totient is φ = 146248648.

The previous prime is 146248591. The next prime is 146248691. The reversal of 146248649 is 946842641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133518025 + 12730624 = 11555^2 + 3568^2 .

It is a cyclic number.

It is not a de Polignac number, because 146248649 - 2⁸ = 146248393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (146148649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73124324 + 73124325.

It is an arithmetic number, because the mean of its divisors is an integer number (73124325).

Almost surely, 2^146248649 is an apocalyptic number.

It is an amenable number.

146248649 is a deficient number, since it is larger than the sum of its proper divisors (1).

146248649 is an equidigital number, since it uses as much as digits as its factorization.

146248649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 146248649 is about 12093.3307653434. The cubic root of 146248649 is about 526.8624991886.

The spelling of 146248649 in words is "one hundred forty-six million, two hundred forty-eight thousand, six hundred forty-nine".