1385142667 has 2 divisors, whose sum is σ = 1385142668. Its totient is φ = 1385142666.

The previous prime is 1385142641. The next prime is 1385142673. The reversal of 1385142667 is 7662415831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1385142667 - 2²³ = 1376754059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1385142697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692571333 + 692571334.

It is an arithmetic number, because the mean of its divisors is an integer number (692571334).

Almost surely, 2^1385142667 is an apocalyptic number.

1385142667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385142667 is an equidigital number, since it uses as much as digits as its factorization.

1385142667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 1385142667 is about 37217.5048465101. The cubic root of 1385142667 is about 1114.7175424537.

The spelling of 1385142667 in words is "one billion, three hundred eighty-five million, one hundred forty-two thousand, six hundred sixty-seven".