138415361 has 8 divisors (see below), whose sum is σ = 166514880. Its totient is φ = 112397328.

The previous prime is 138415351. The next prime is 138415363. The reversal of 138415361 is 163514831.

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 138415361 - 2¹⁰ = 138414337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138415363) 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, 520226 + ... + 520491.

It is an arithmetic number, because the mean of its divisors is an integer number (20814360).

Almost surely, 2^138415361 is an apocalyptic number.

It is an amenable number.

138415361 is a deficient number, since it is larger than the sum of its proper divisors (28099519).

138415361 is a wasteful number, since it uses less digits than its factorization.

138415361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040743.

The product of its digits is 8640, while the sum is 32.

The square root of 138415361 is about 11765.0057798541. The cubic root of 138415361 is about 517.2828696950.

The spelling of 138415361 in words is "one hundred thirty-eight million, four hundred fifteen thousand, three hundred sixty-one".