138400483601501 has 24 divisors (see below), whose sum is σ = 153094681887840. Its totient is φ = 124082308771200.

The previous prime is 138400483601489. The next prime is 138400483601503. The reversal of 138400483601501 is 105106384004831.

It is a de Polignac number, because none of the positive numbers 2^k-138400483601501 is a prime.

It is a super-2 number, since 2×138400483601501² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138400483601503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 594338870 + ... + 594571688.

It is an arithmetic number, because the mean of its divisors is an integer number (6378945078660).

Almost surely, 2^{138400483601501} is an apocalyptic number.

138400483601501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

138400483601501 is a deficient number, since it is larger than the sum of its proper divisors (14694198286339).

138400483601501 is a wasteful number, since it uses less digits than its factorization.

138400483601501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243117 (or 243044 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 138400483601501 in words is "one hundred thirty-eight trillion, four hundred billion, four hundred eighty-three million, six hundred one thousand, five hundred one".