1913134507 has 2 divisors, whose sum is σ = 1913134508. Its totient is φ = 1913134506.

The previous prime is 1913134451. The next prime is 1913134519. The reversal of 1913134507 is 7054313191.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1913134507 - 2¹⁵ = 1913101739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1913134207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956567253 + 956567254.

It is an arithmetic number, because the mean of its divisors is an integer number (956567254).

Almost surely, 2^1913134507 is an apocalyptic number.

1913134507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913134507 is an equidigital number, since it uses as much as digits as its factorization.

1913134507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1913134507 is about 43739.3930799228. The cubic root of 1913134507 is about 1241.4097967824.

Adding to 1913134507 its reverse (7054313191), we get a palindrome (8967447698).

The spelling of 1913134507 in words is "one billion, nine hundred thirteen million, one hundred thirty-four thousand, five hundred seven".