138246000 has 80 divisors (see below), whose sum is σ = 445724448. Its totient is φ = 36864000.

The previous prime is 138245981. The next prime is 138246037. The reversal of 138246000 is 642831.

It is a happy number.

138246000 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 (80).

It is a super-2 number, since 2×138246000² = 38223913032000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5521 + ... + 17520.

Almost surely, 2^138246000 is an apocalyptic number.

138246000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138246000 is an abundant number, since it is smaller than the sum of its proper divisors (307478448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138246000 is a wasteful number, since it uses less digits than its factorization.

138246000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23067 (or 23051 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 138246000 is about 11757.8059177722. The cubic root of 138246000 is about 517.0718061754.

Adding to 138246000 its reverse (642831), we get a palindrome (138888831).

The spelling of 138246000 in words is "one hundred thirty-eight million, two hundred forty-six thousand".