385147241 has 2 divisors, whose sum is σ = 385147242. Its totient is φ = 385147240.

The previous prime is 385147163. The next prime is 385147247. The reversal of 385147241 is 142741583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381030400 + 4116841 = 19520^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 385147241 - 2²² = 380952937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (385147247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192573620 + 192573621.

It is an arithmetic number, because the mean of its divisors is an integer number (192573621).

Almost surely, 2^385147241 is an apocalyptic number.

It is an amenable number.

385147241 is a deficient number, since it is larger than the sum of its proper divisors (1).

385147241 is an equidigital number, since it uses as much as digits as its factorization.

385147241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 385147241 is about 19625.1685597857. The cubic root of 385147241 is about 727.5713630432.

The spelling of 385147241 in words is "three hundred eighty-five million, one hundred forty-seven thousand, two hundred forty-one".