138121462 has 16 divisors (see below), whose sum is σ = 210882672. Its totient is φ = 67836960.

The previous prime is 138121457. The next prime is 138121541. The reversal of 138121462 is 264121831.

138121462 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138121462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27748 + ... + 32344.

It is an arithmetic number, because the mean of its divisors is an integer number (13180167).

Almost surely, 2^138121462 is an apocalyptic number.

138121462 is a deficient number, since it is larger than the sum of its proper divisors (72761210).

138121462 is a wasteful number, since it uses less digits than its factorization.

138121462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863.

The product of its digits is 2304, while the sum is 28.

The square root of 138121462 is about 11752.5087534535. The cubic root of 138121462 is about 516.9164926162.

The spelling of 138121462 in words is "one hundred thirty-eight million, one hundred twenty-one thousand, four hundred sixty-two".