138076545 has 16 divisors (see below), whose sum is σ = 222989760. Its totient is φ = 72951744.

The previous prime is 138076537. The next prime is 138076577. The reversal of 138076545 is 545670831.

It is not a de Polignac number, because 138076545 - 2³ = 138076537 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 41410 + ... + 44619.

It is an arithmetic number, because the mean of its divisors is an integer number (13936860).

Almost surely, 2^138076545 is an apocalyptic number.

138076545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138076545 is a deficient number, since it is larger than the sum of its proper divisors (84913215).

138076545 is a wasteful number, since it uses less digits than its factorization.

138076545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86144.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 138076545 is about 11750.5976443754. The cubic root of 138076545 is about 516.8604529174.

The spelling of 138076545 in words is "one hundred thirty-eight million, seventy-six thousand, five hundred forty-five".