138007045 has 8 divisors (see below), whose sum is σ = 180663840. Its totient is φ = 100368720.

The previous prime is 138007043. The next prime is 138007063. The reversal of 138007045 is 540700831.

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

It is not a de Polignac number, because 138007045 - 2¹ = 138007043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138007043) 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, 1254555 + ... + 1254664.

It is an arithmetic number, because the mean of its divisors is an integer number (22582980).

Almost surely, 2^138007045 is an apocalyptic number.

It is an amenable number.

138007045 is a deficient number, since it is larger than the sum of its proper divisors (42656795).

138007045 is a wasteful number, since it uses less digits than its factorization.

138007045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509235.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 138007045 is about 11747.6399757568. The cubic root of 138007045 is about 516.7737188280.

Adding to 138007045 its reverse (540700831), we get a palindrome (678707876).

The spelling of 138007045 in words is "one hundred thirty-eight million, seven thousand, forty-five".