1481039381 has 2 divisors, whose sum is σ = 1481039382. Its totient is φ = 1481039380.

The previous prime is 1481039363. The next prime is 1481039383. The reversal of 1481039381 is 1839301841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1223950225 + 257089156 = 34985^2 + 16034^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481039381 - 2¹⁰ = 1481038357 is a prime.

It is a super-2 number, since 2×1481039381² = 4386955296145726322, which contains 22 as substring.

Together with 1481039383, 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 (1481039383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740519690 + 740519691.

It is an arithmetic number, because the mean of its divisors is an integer number (740519691).

Almost surely, 2^1481039381 is an apocalyptic number.

It is an amenable number.

1481039381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481039381 is an equidigital number, since it uses as much as digits as its factorization.

1481039381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1481039381 is about 38484.2744637339. The cubic root of 1481039381 is about 1139.8705559909.

The spelling of 1481039381 in words is "one billion, four hundred eighty-one million, thirty-nine thousand, three hundred eighty-one".