912800381 has 2 divisors, whose sum is σ = 912800382. Its totient is φ = 912800380.

The previous prime is 912800377. The next prime is 912800459. The reversal of 912800381 is 183008219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481407481 + 431392900 = 21941^2 + 20770^2 .

It is a cyclic number.

It is not a de Polignac number, because 912800381 - 2² = 912800377 is a prime.

It is a super-2 number, since 2×912800381² = 1666409071107490322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (912800311) 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, 456400190 + 456400191.

It is an arithmetic number, because the mean of its divisors is an integer number (456400191).

Almost surely, 2^912800381 is an apocalyptic number.

It is an amenable number.

912800381 is a deficient number, since it is larger than the sum of its proper divisors (1).

912800381 is an equidigital number, since it uses as much as digits as its factorization.

912800381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 912800381 is about 30212.5864665705. The cubic root of 912800381 is about 970.0451252610.

The spelling of 912800381 in words is "nine hundred twelve million, eight hundred thousand, three hundred eighty-one".