138745046 has 8 divisors (see below), whose sum is σ = 227037384. Its totient is φ = 63065920.

The previous prime is 138745027. The next prime is 138745063. The reversal of 138745046 is 640547831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153275 + ... + 3153318.

It is an arithmetic number, because the mean of its divisors is an integer number (28379673).

Almost surely, 2^138745046 is an apocalyptic number.

138745046 is a deficient number, since it is larger than the sum of its proper divisors (88292338).

138745046 is a wasteful number, since it uses less digits than its factorization.

138745046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306606.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 138745046 is about 11779.0087019239. The cubic root of 138745046 is about 517.6932412507.

The spelling of 138745046 in words is "one hundred thirty-eight million, seven hundred forty-five thousand, forty-six".