138450262 has 8 divisors (see below), whose sum is σ = 207756792. Its totient is φ = 69198000.

The previous prime is 138450253. The next prime is 138450281. The reversal of 138450262 is 262054831.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6439 + ... + 17842.

It is an arithmetic number, because the mean of its divisors is an integer number (25969599).

Almost surely, 2^138450262 is an apocalyptic number.

138450262 is a deficient number, since it is larger than the sum of its proper divisors (69306530).

138450262 is a wasteful number, since it uses less digits than its factorization.

138450262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27134.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 138450262 is about 11766.4889410563. The cubic root of 138450262 is about 517.3263431267.

The spelling of 138450262 in words is "one hundred thirty-eight million, four hundred fifty thousand, two hundred sixty-two".