138266597 has 8 divisors (see below), whose sum is σ = 158106816. Its totient is φ = 118448352.

The previous prime is 138266567. The next prime is 138266633. The reversal of 138266597 is 795662831.

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 138266597 - 2⁶ = 138266533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138266507) 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, 11513 + ... + 20225.

It is an arithmetic number, because the mean of its divisors is an integer number (19763352).

Almost surely, 2^138266597 is an apocalyptic number.

It is an amenable number.

138266597 is a deficient number, since it is larger than the sum of its proper divisors (19840219).

138266597 is an equidigital number, since it uses as much as digits as its factorization.

138266597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987.

The product of its digits is 544320, while the sum is 47.

The square root of 138266597 is about 11758.6817713552. The cubic root of 138266597 is about 517.0974840712.

The spelling of 138266597 in words is "one hundred thirty-eight million, two hundred sixty-six thousand, five hundred ninety-seven".