138910034 has 16 divisors (see below), whose sum is σ = 210551616. Its totient is φ = 68730000.

The previous prime is 138910003. The next prime is 138910061. The reversal of 138910034 is 430019831.

It is a junction number, because it is equal to n+sod(n) for n = 138909979 and 138910006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95009 + ... + 96459.

It is an arithmetic number, because the mean of its divisors is an integer number (13159476).

Almost surely, 2^138910034 is an apocalyptic number.

138910034 is a deficient number, since it is larger than the sum of its proper divisors (71641582).

138910034 is a wasteful number, since it uses less digits than its factorization.

138910034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 138910034 is about 11786.0100967206. The cubic root of 138910034 is about 517.8983641027.

Adding to 138910034 its reverse (430019831), we get a palindrome (568929865).

The spelling of 138910034 in words is "one hundred thirty-eight million, nine hundred ten thousand, thirty-four".