987271541 has 2 divisors, whose sum is σ = 987271542. Its totient is φ = 987271540.

The previous prime is 987271517. The next prime is 987271553. The reversal of 987271541 is 145172789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939177316 + 48094225 = 30646^2 + 6935^2 .

It is an emirp because it is prime and its reverse (145172789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 987271541 - 2¹⁰ = 987270517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 987271492 and 987271501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987271501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493635770 + 493635771.

It is an arithmetic number, because the mean of its divisors is an integer number (493635771).

Almost surely, 2^987271541 is an apocalyptic number.

It is an amenable number.

987271541 is a deficient number, since it is larger than the sum of its proper divisors (1).

987271541 is an equidigital number, since it uses as much as digits as its factorization.

987271541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 44.

The square root of 987271541 is about 31420.8774702426. The cubic root of 987271541 is about 995.7390504289.

The spelling of 987271541 in words is "nine hundred eighty-seven million, two hundred seventy-one thousand, five hundred forty-one".