138833330 has 16 divisors (see below), whose sum is σ = 250188480. Its totient is φ = 55469232.

The previous prime is 138833309. The next prime is 138833351. The reversal of 138833330 is 33338831.

It is an interprime number because it is at equal distance from previous prime (138833309) and next prime (138833351).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637 + ... + 16743.

It is an arithmetic number, because the mean of its divisors is an integer number (15636780).

Almost surely, 2^138833330 is an apocalyptic number.

138833330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138833330 is a deficient number, since it is larger than the sum of its proper divisors (111355150).

138833330 is a wasteful number, since it uses less digits than its factorization.

138833330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16033.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 138833330 is about 11782.7556199728. The cubic root of 138833330 is about 517.8030213617.

The spelling of 138833330 in words is "one hundred thirty-eight million, eight hundred thirty-three thousand, three hundred thirty".