1387500137501 has 4 divisors (see below), whose sum is σ = 1387504487772. Its totient is φ = 1387495787232.

The previous prime is 1387500137467. The next prime is 1387500137531. The reversal of 1387500137501 is 1057310057831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 937662988900 + 449837148601 = 968330^2 + 670699^2 .

It is a cyclic number.

It is not a de Polignac number, because 1387500137501 - 2¹⁸ = 1387499875357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387500137531) 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, 1655306 + ... + 2348411.

It is an arithmetic number, because the mean of its divisors is an integer number (346876121943).

Almost surely, 2^{1387500137501} is an apocalyptic number.

It is an amenable number.

1387500137501 is a deficient number, since it is larger than the sum of its proper divisors (4350271).

1387500137501 is an equidigital number, since it uses as much as digits as its factorization.

1387500137501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350270.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 1387500137501 in words is "one trillion, three hundred eighty-seven billion, five hundred million, one hundred thirty-seven thousand, five hundred one".