138463001 has 2 divisors, whose sum is σ = 138463002. Its totient is φ = 138463000.

The previous prime is 138462983. The next prime is 138463033. The reversal of 138463001 is 100364831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137358400 + 1104601 = 11720^2 + 1051^2 .

It is a cyclic number.

It is not a de Polignac number, because 138463001 - 2²² = 134268697 is a prime.

It is not a weakly prime, because it can be changed into another prime (138463901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69231500 + 69231501.

It is an arithmetic number, because the mean of its divisors is an integer number (69231501).

Almost surely, 2^138463001 is an apocalyptic number.

It is an amenable number.

138463001 is a deficient number, since it is larger than the sum of its proper divisors (1).

138463001 is an equidigital number, since it uses as much as digits as its factorization.

138463001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 138463001 is about 11767.0302540616. The cubic root of 138463001 is about 517.3422092774.

The spelling of 138463001 in words is "one hundred thirty-eight million, four hundred sixty-three thousand, one".