1249348519 has 2 divisors, whose sum is σ = 1249348520. Its totient is φ = 1249348518.

The previous prime is 1249348511. The next prime is 1249348537. The reversal of 1249348519 is 9158439421.

It is a weak prime.

It is an emirp because it is prime and its reverse (9158439421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1249348519 - 2³ = 1249348511 is a prime.

It is a super-2 number, since 2×1249348519² = 3121743443854986722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1249348511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624674259 + 624674260.

It is an arithmetic number, because the mean of its divisors is an integer number (624674260).

Almost surely, 2^1249348519 is an apocalyptic number.

1249348519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249348519 is an equidigital number, since it uses as much as digits as its factorization.

1249348519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

The square root of 1249348519 is about 35346.1245258939. The cubic root of 1249348519 is about 1077.0301693923.

The spelling of 1249348519 in words is "one billion, two hundred forty-nine million, three hundred forty-eight thousand, five hundred nineteen".