1045947319 has 2 divisors, whose sum is σ = 1045947320. Its totient is φ = 1045947318.

The previous prime is 1045947289. The next prime is 1045947337. The reversal of 1045947319 is 9137495401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045947319 is a prime.

It is a super-2 number, since 2×1045947319² = 2188011588246575522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045947619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522973659 + 522973660.

It is an arithmetic number, because the mean of its divisors is an integer number (522973660).

Almost surely, 2^1045947319 is an apocalyptic number.

1045947319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045947319 is an equidigital number, since it uses as much as digits as its factorization.

1045947319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1045947319 is about 32341.1088090684. The cubic root of 1045947319 is about 1015.0870104253.

The spelling of 1045947319 in words is "one billion, forty-five million, nine hundred forty-seven thousand, three hundred nineteen".