138710652 has 24 divisors (see below), whose sum is σ = 329145600. Its totient is φ = 45452976.

The previous prime is 138710651. The next prime is 138710653. The reversal of 138710652 is 256017831.

It is an interprime number because it is at equal distance from previous prime (138710651) and next prime (138710653).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138710651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97252 + ... + 98667.

It is an arithmetic number, because the mean of its divisors is an integer number (13714400).

Almost surely, 2^138710652 is an apocalyptic number.

138710652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138710652 is an abundant number, since it is smaller than the sum of its proper divisors (190434948).

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

138710652 is a wasteful number, since it uses less digits than its factorization.

138710652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195985 (or 195983 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 138710652 is about 11777.5486413769. The cubic root of 138710652 is about 517.6504601128.

The spelling of 138710652 in words is "one hundred thirty-eight million, seven hundred ten thousand, six hundred fifty-two".