138953060 has 12 divisors (see below), whose sum is σ = 291801468. Its totient is φ = 55581216.

The previous prime is 138953057. The next prime is 138953063. The reversal of 138953060 is 60359831.

138953060 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138953057) and next prime (138953063).

It can be written as a sum of positive squares in 2 ways, for example, as 52388644 + 86564416 = 7238^2 + 9304^2 .

138953060 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 138953060.

It is not an unprimeable number, because it can be changed into a prime (138953063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3473807 + ... + 3473846.

It is an arithmetic number, because the mean of its divisors is an integer number (24316789).

Almost surely, 2^138953060 is an apocalyptic number.

138953060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138953060 is an abundant number, since it is smaller than the sum of its proper divisors (152848408).

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

138953060 is a wasteful number, since it uses less digits than its factorization.

138953060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947662 (or 6947660 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 138953060 is about 11787.8352550415. The cubic root of 138953060 is about 517.9518298702.

The spelling of 138953060 in words is "one hundred thirty-eight million, nine hundred fifty-three thousand, sixty".