138550076 has 24 divisors (see below), whose sum is σ = 278003040. Its totient is φ = 59185152.

The previous prime is 138550019. The next prime is 138550103. The reversal of 138550076 is 670055831.

It is a super-2 number, since 2×138550076² = 38392247119211552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860 + ... + 16668.

It is an arithmetic number, because the mean of its divisors is an integer number (11583460).

Almost surely, 2^138550076 is an apocalyptic number.

It is an amenable number.

138550076 is an abundant number, since it is smaller than the sum of its proper divisors (139452964).

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

138550076 is a wasteful number, since it uses less digits than its factorization.

138550076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16133 (or 16131 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 138550076 is about 11770.7296290417. The cubic root of 138550076 is about 517.4506332676.

The spelling of 138550076 in words is "one hundred thirty-eight million, five hundred fifty thousand, seventy-six".