381259733 has 2 divisors, whose sum is σ = 381259734. Its totient is φ = 381259732.

The previous prime is 381259693. The next prime is 381259741. The reversal of 381259733 is 337952183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209728324 + 171531409 = 14482^2 + 13097^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381259733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381259763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190629866 + 190629867.

It is an arithmetic number, because the mean of its divisors is an integer number (190629867).

Almost surely, 2^381259733 is an apocalyptic number.

It is an amenable number.

381259733 is a deficient number, since it is larger than the sum of its proper divisors (1).

381259733 is an equidigital number, since it uses as much as digits as its factorization.

381259733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 381259733 is about 19525.8734247664. The cubic root of 381259733 is about 725.1151512697.

The spelling of 381259733 in words is "three hundred eighty-one million, two hundred fifty-nine thousand, seven hundred thirty-three".