146269813 has 2 divisors, whose sum is σ = 146269814. Its totient is φ = 146269812.

The previous prime is 146269807. The next prime is 146269841. The reversal of 146269813 is 318962641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140232964 + 6036849 = 11842^2 + 2457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146269813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146269913) 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, 73134906 + 73134907.

It is an arithmetic number, because the mean of its divisors is an integer number (73134907).

Almost surely, 2^146269813 is an apocalyptic number.

It is an amenable number.

146269813 is a deficient number, since it is larger than the sum of its proper divisors (1).

146269813 is an equidigital number, since it uses as much as digits as its factorization.

146269813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 146269813 is about 12094.2057614380. The cubic root of 146269813 is about 526.8879124834.

The spelling of 146269813 in words is "one hundred forty-six million, two hundred sixty-nine thousand, eight hundred thirteen".