138301258 has 4 divisors (see below), whose sum is σ = 207451890. Its totient is φ = 69150628.

The previous prime is 138301253. The next prime is 138301279. The reversal of 138301258 is 852103831.

138301258 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., 131262849 + 7038409 = 11457^2 + 2653^2 .

It is not an unprimeable number, because it can be changed into a prime (138301253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34575313 + ... + 34575316.

Almost surely, 2^138301258 is an apocalyptic number.

138301258 is a deficient number, since it is larger than the sum of its proper divisors (69150632).

138301258 is an equidigital number, since it uses as much as digits as its factorization.

138301258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69150631.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 138301258 is about 11760.1555261825. The cubic root of 138301258 is about 517.1406895376.

The spelling of 138301258 in words is "one hundred thirty-eight million, three hundred one thousand, two hundred fifty-eight".