1349249647 has 2 divisors, whose sum is σ = 1349249648. Its totient is φ = 1349249646.

The previous prime is 1349249639. The next prime is 1349249653. The reversal of 1349249647 is 7469429431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1349249647 - 2³ = 1349249639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1349249647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1349240647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674624823 + 674624824.

It is an arithmetic number, because the mean of its divisors is an integer number (674624824).

Almost surely, 2^1349249647 is an apocalyptic number.

1349249647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349249647 is an equidigital number, since it uses as much as digits as its factorization.

1349249647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 1349249647 is about 36732.1337115066. The cubic root of 1349249647 is about 1105.0046468960.

The spelling of 1349249647 in words is "one billion, three hundred forty-nine million, two hundred forty-nine thousand, six hundred forty-seven".