1385612201 has 2 divisors, whose sum is σ = 1385612202. Its totient is φ = 1385612200.

The previous prime is 1385612167. The next prime is 1385612203. The reversal of 1385612201 is 1022165831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1074266176 + 311346025 = 32776^2 + 17645^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385612201 - 2¹⁰ = 1385611177 is a prime.

Together with 1385612203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1385612203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692806100 + 692806101.

It is an arithmetic number, because the mean of its divisors is an integer number (692806101).

Almost surely, 2^1385612201 is an apocalyptic number.

It is an amenable number.

1385612201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385612201 is an equidigital number, since it uses as much as digits as its factorization.

1385612201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1385612201 is about 37223.8122846116. The cubic root of 1385612201 is about 1114.8434834295.

The spelling of 1385612201 in words is "one billion, three hundred eighty-five million, six hundred twelve thousand, two hundred one".