138850744 has 8 divisors (see below), whose sum is σ = 260345160. Its totient is φ = 69425368.

The previous prime is 138850717. The next prime is 138850771. The reversal of 138850744 is 447058831.

It is an interprime number because it is at equal distance from previous prime (138850717) and next prime (138850771).

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

It is a junction number, because it is equal to n+sod(n) for n = 138850697 and 138850706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8678164 + ... + 8678179.

It is an arithmetic number, because the mean of its divisors is an integer number (32543145).

Almost surely, 2^138850744 is an apocalyptic number.

It is an amenable number.

138850744 is a deficient number, since it is larger than the sum of its proper divisors (121494416).

138850744 is a wasteful number, since it uses less digits than its factorization.

138850744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17356349 (or 17356345 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 138850744 is about 11783.4945580672. The cubic root of 138850744 is about 517.8246699692.

The spelling of 138850744 in words is "one hundred thirty-eight million, eight hundred fifty thousand, seven hundred forty-four".