138548070 has 40 divisors (see below), whose sum is σ = 372542544. Its totient is φ = 36945936.

The previous prime is 138548029. The next prime is 138548071. The reversal of 138548070 is 70845831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138548071) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84714 + ... + 86333.

Almost surely, 2^138548070 is an apocalyptic number.

138548070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138548070 is an abundant number, since it is smaller than the sum of its proper divisors (233994474).

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

138548070 is a wasteful number, since it uses less digits than its factorization.

138548070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171066 (or 171057 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 138548070 is about 11770.6444173631. The cubic root of 138548070 is about 517.4481359492.

It can be divided in two parts, 1385 and 48070, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 138548070 in words is "one hundred thirty-eight million, five hundred forty-eight thousand, seventy".