138860801 has 2 divisors, whose sum is σ = 138860802. Its totient is φ = 138860800.

The previous prime is 138860773. The next prime is 138860831. The reversal of 138860801 is 108068831.

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., 117700801 + 21160000 = 10849^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 138860801 - 2¹⁴ = 138844417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138860831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69430400 + 69430401.

It is an arithmetic number, because the mean of its divisors is an integer number (69430401).

Almost surely, 2^138860801 is an apocalyptic number.

It is an amenable number.

138860801 is a deficient number, since it is larger than the sum of its proper divisors (1).

138860801 is an equidigital number, since it uses as much as digits as its factorization.

138860801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 138860801 is about 11783.9212913189. The cubic root of 138860801 is about 517.8371717315.

The spelling of 138860801 in words is "one hundred thirty-eight million, eight hundred sixty thousand, eight hundred one".