381055049 has 2 divisors, whose sum is σ = 381055050. Its totient is φ = 381055048.

The previous prime is 381055033. The next prime is 381055067. The reversal of 381055049 is 940550183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381030400 + 24649 = 19520^2 + 157^2 .

It is a cyclic number.

It is not a de Polignac number, because 381055049 - 2⁴ = 381055033 is a prime.

It is a super-4 number, since 4×381055049⁴ (a number of 35 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (381055009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190527524 + 190527525.

It is an arithmetic number, because the mean of its divisors is an integer number (190527525).

Almost surely, 2^381055049 is an apocalyptic number.

It is an amenable number.

381055049 is a deficient number, since it is larger than the sum of its proper divisors (1).

381055049 is an equidigital number, since it uses as much as digits as its factorization.

381055049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 381055049 is about 19520.6313678631. The cubic root of 381055049 is about 724.9853656975.

The spelling of 381055049 in words is "three hundred eighty-one million, fifty-five thousand, forty-nine".