138270098 has 4 divisors (see below), whose sum is σ = 207405150. Its totient is φ = 69135048.

The previous prime is 138270091. The next prime is 138270101. The reversal of 138270098 is 890072831.

138270098 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 130942249 + 7327849 = 11443^2 + 2707^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138270091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34567523 + ... + 34567526.

Almost surely, 2^138270098 is an apocalyptic number.

138270098 is a deficient number, since it is larger than the sum of its proper divisors (69135052).

138270098 is an equidigital number, since it uses as much as digits as its factorization.

138270098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69135051.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 138270098 is about 11758.8306391410. The cubic root of 138270098 is about 517.1018484490.

The spelling of 138270098 in words is "one hundred thirty-eight million, two hundred seventy thousand, ninety-eight".