138863416 has 8 divisors (see below), whose sum is σ = 260368920. Its totient is φ = 69431704.

The previous prime is 138863411. The next prime is 138863441. The reversal of 138863416 is 614368831.

It is a happy number.

138863416 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138863411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8678956 + ... + 8678971.

It is an arithmetic number, because the mean of its divisors is an integer number (32546115).

Almost surely, 2^138863416 is an apocalyptic number.

It is an amenable number.

138863416 is a deficient number, since it is larger than the sum of its proper divisors (121505504).

138863416 is a wasteful number, since it uses less digits than its factorization.

138863416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17357933 (or 17357929 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 138863416 is about 11784.0322470706. The cubic root of 138863416 is about 517.8404223146.

The spelling of 138863416 in words is "one hundred thirty-eight million, eight hundred sixty-three thousand, four hundred sixteen".