381153049 has 2 divisors, whose sum is σ = 381153050. Its totient is φ = 381153048.

The previous prime is 381153023. The next prime is 381153067. The reversal of 381153049 is 940351183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361190025 + 19963024 = 19005^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 381153049 - 2¹³ = 381144857 is a prime.

It is not a weakly prime, because it can be changed into another prime (381123049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190576524 + 190576525.

It is an arithmetic number, because the mean of its divisors is an integer number (190576525).

Almost surely, 2^381153049 is an apocalyptic number.

It is an amenable number.

381153049 is a deficient number, since it is larger than the sum of its proper divisors (1).

381153049 is an equidigital number, since it uses as much as digits as its factorization.

381153049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 381153049 is about 19523.1413712036. The cubic root of 381153049 is about 725.0475111155.

It can be divided in two parts, 38115 and 3049, that multiplied together give a triangular number (116212635 = T₁₅₂₄₅).

The spelling of 381153049 in words is "three hundred eighty-one million, one hundred fifty-three thousand, forty-nine".