138801297 has 8 divisors (see below), whose sum is σ = 193114944. Its totient is φ = 88510928.

The previous prime is 138801283. The next prime is 138801301. The reversal of 138801297 is 792108831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138801297 - 2⁶ = 138801233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138801227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005738 + ... + 1005875.

It is an arithmetic number, because the mean of its divisors is an integer number (24139368).

Almost surely, 2^138801297 is an apocalyptic number.

It is an amenable number.

138801297 is a deficient number, since it is larger than the sum of its proper divisors (54313647).

138801297 is a wasteful number, since it uses less digits than its factorization.

138801297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011639.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 138801297 is about 11781.3962245567. The cubic root of 138801297 is about 517.7631940857.

The spelling of 138801297 in words is "one hundred thirty-eight million, eight hundred one thousand, two hundred ninety-seven".