138414087 has 12 divisors (see below), whose sum is σ = 228493200. Its totient is φ = 79093728.

The previous prime is 138414047. The next prime is 138414091. The reversal of 138414087 is 780414831.

It is not a de Polignac number, because 138414087 - 2⁸ = 138413831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138414047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098462 + ... + 1098587.

It is an arithmetic number, because the mean of its divisors is an integer number (19041100).

Almost surely, 2^138414087 is an apocalyptic number.

138414087 is a deficient number, since it is larger than the sum of its proper divisors (90079113).

138414087 is a wasteful number, since it uses less digits than its factorization.

138414087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197062 (or 2197059 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 138414087 is about 11764.9516361097. The cubic root of 138414087 is about 517.2812826351.

The spelling of 138414087 in words is "one hundred thirty-eight million, four hundred fourteen thousand, eighty-seven".