1387420140541 has 2 divisors, whose sum is σ = 1387420140542. Its totient is φ = 1387420140540.

The previous prime is 1387420140539. The next prime is 1387420140571. The reversal of 1387420140541 is 1450410247831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 859058337316 + 528361803225 = 926854^2 + 726885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1387420140541 - 2¹ = 1387420140539 is a prime.

It is a super-3 number, since 3×1387420140541³ (a number of 37 digits) contains 333 as substring.

Together with 1387420140539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1387420140494 and 1387420140503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387420140571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693710070270 + 693710070271.

It is an arithmetic number, because the mean of its divisors is an integer number (693710070271).

Almost surely, 2^{1387420140541} is an apocalyptic number.

It is an amenable number.

1387420140541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387420140541 is an equidigital number, since it uses as much as digits as its factorization.

1387420140541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 1387420140541 in words is "one trillion, three hundred eighty-seven billion, four hundred twenty million, one hundred forty thousand, five hundred forty-one".