138964043 has 8 divisors (see below), whose sum is σ = 147787920. Its totient is φ = 130291200.

The previous prime is 138964031. The next prime is 138964051. The reversal of 138964043 is 340469831.

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

It is a cyclic number.

It is not a de Polignac number, because 138964043 - 2⁸ = 138963787 is a prime.

It is a super-2 number, since 2×138964043² = 38622010493811698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138963988 and 138964006.

It is not an unprimeable number, because it can be changed into a prime (138963043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35858 + ... + 39543.

It is an arithmetic number, because the mean of its divisors is an integer number (18473490).

Almost surely, 2^138964043 is an apocalyptic number.

138964043 is a deficient number, since it is larger than the sum of its proper divisors (8823877).

138964043 is an equidigital number, since it uses as much as digits as its factorization.

138964043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75517.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 138964043 is about 11788.3011074539. The cubic root of 138964043 is about 517.9654760014.

The spelling of 138964043 in words is "one hundred thirty-eight million, nine hundred sixty-four thousand, forty-three".