138360997 has 8 divisors (see below), whose sum is σ = 141489792. Its totient is φ = 135240000.

The previous prime is 138360991. The next prime is 138361007. The reversal of 138360997 is 799063831.

138360997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 138360997 - 2²³ = 129972389 is a prime.

It is a Duffinian number.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138360991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47997 + ... + 50797.

It is an arithmetic number, because the mean of its divisors is an integer number (17686224).

Almost surely, 2^138360997 is an apocalyptic number.

It is an amenable number.

138360997 is a deficient number, since it is larger than the sum of its proper divisors (3128795).

138360997 is a wasteful number, since it uses less digits than its factorization.

138360997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 138360997 is about 11762.6951418457. The cubic root of 138360997 is about 517.2151381749.

The spelling of 138360997 in words is "one hundred thirty-eight million, three hundred sixty thousand, nine hundred ninety-seven".