1915246481 has 2 divisors, whose sum is σ = 1915246482. Its totient is φ = 1915246480.

The previous prime is 1915246477. The next prime is 1915246483. The reversal of 1915246481 is 1846425191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1778730625 + 136515856 = 42175^2 + 11684^2 .

It is a cyclic number.

It is not a de Polignac number, because 1915246481 - 2² = 1915246477 is a prime.

It is a super-2 number, since 2×1915246481² = 7336338165965766722, which contains 22 as substring.

Together with 1915246483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1915246483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957623240 + 957623241.

It is an arithmetic number, because the mean of its divisors is an integer number (957623241).

Almost surely, 2^1915246481 is an apocalyptic number.

It is an amenable number.

1915246481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1915246481 is an equidigital number, since it uses as much as digits as its factorization.

1915246481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The square root of 1915246481 is about 43763.5291195763. The cubic root of 1915246481 is about 1241.8664402335.

The spelling of 1915246481 in words is "one billion, nine hundred fifteen million, two hundred forty-six thousand, four hundred eighty-one".