915385049 has 2 divisors, whose sum is σ = 915385050. Its totient is φ = 915385048.

The previous prime is 915384997. The next prime is 915385151. The reversal of 915385049 is 940583519.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 654336400 + 261048649 = 25580^2 + 16157^2 .

It is a cyclic number.

It is not a de Polignac number, because 915385049 - 2¹² = 915380953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (915382049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457692524 + 457692525.

It is an arithmetic number, because the mean of its divisors is an integer number (457692525).

Almost surely, 2^915385049 is an apocalyptic number.

It is an amenable number.

915385049 is a deficient number, since it is larger than the sum of its proper divisors (1).

915385049 is an equidigital number, since it uses as much as digits as its factorization.

915385049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 915385049 is about 30255.3309186993. The cubic root of 915385049 is about 970.9598494706.

The spelling of 915385049 in words is "nine hundred fifteen million, three hundred eighty-five thousand, forty-nine".