138450654 has 16 divisors (see below), whose sum is σ = 307668240. Its totient is φ = 46150200.

The previous prime is 138450649. The next prime is 138450661. The reversal of 138450654 is 456054831.

It is a happy number.

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, 1281897 + ... + 1282004.

It is an arithmetic number, because the mean of its divisors is an integer number (19229265).

Almost surely, 2^138450654 is an apocalyptic number.

138450654 is an abundant number, since it is smaller than the sum of its proper divisors (169217586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138450654 is a wasteful number, since it uses less digits than its factorization.

138450654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563912 (or 2563906 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 138450654 is about 11766.5055985199. The cubic root of 138450654 is about 517.3268313688.

The spelling of 138450654 in words is "one hundred thirty-eight million, four hundred fifty thousand, six hundred fifty-four".