138302901 has 12 divisors (see below), whose sum is σ = 217932000. Its totient is φ = 83819880.

The previous prime is 138302897. The next prime is 138302951. The reversal of 138302901 is 109203831.

It is not a de Polignac number, because 138302901 - 2² = 138302897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138302951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 698401 + ... + 698598.

It is an arithmetic number, because the mean of its divisors is an integer number (18161000).

Almost surely, 2^138302901 is an apocalyptic number.

138302901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

138302901 is a deficient number, since it is larger than the sum of its proper divisors (79629099).

138302901 is a wasteful number, since it uses less digits than its factorization.

138302901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397016 (or 1397013 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 138302901 is about 11760.2253804934. The cubic root of 138302901 is about 517.1427373830.

The spelling of 138302901 in words is "one hundred thirty-eight million, three hundred two thousand, nine hundred one".