1361531471 has 2 divisors, whose sum is σ = 1361531472. Its totient is φ = 1361531470.

The previous prime is 1361531453. The next prime is 1361531473. The reversal of 1361531471 is 1741351631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1361531471 - 2¹⁴ = 1361515087 is a prime.

It is a super-3 number, since 3×1361531471³ (a number of 28 digits) contains 333 as substring.

Together with 1361531473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361531473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680765735 + 680765736.

It is an arithmetic number, because the mean of its divisors is an integer number (680765736).

Almost surely, 2^1361531471 is an apocalyptic number.

1361531471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361531471 is an equidigital number, since it uses as much as digits as its factorization.

1361531471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 1361531471 is about 36898.9359060665. The cubic root of 1361531471 is about 1108.3473691679.

The spelling of 1361531471 in words is "one billion, three hundred sixty-one million, five hundred thirty-one thousand, four hundred seventy-one".