1349137019 has 4 divisors (see below), whose sum is σ = 1392657600. Its totient is φ = 1305616440.

The previous prime is 1349136989. The next prime is 1349137037. The reversal of 1349137019 is 9107319431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1349137019 - 2¹⁶ = 1349071483 is a prime.

It is a super-2 number, since 2×1349137019² = 3640341392072412722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1349137079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21760244 + ... + 21760305.

It is an arithmetic number, because the mean of its divisors is an integer number (348164400).

Almost surely, 2^1349137019 is an apocalyptic number.

1349137019 is a deficient number, since it is larger than the sum of its proper divisors (43520581).

1349137019 is an equidigital number, since it uses as much as digits as its factorization.

1349137019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43520580.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1349137019 is about 36730.6005804425. The cubic root of 1349137019 is about 1104.9738994538.

The spelling of 1349137019 in words is "one billion, three hundred forty-nine million, one hundred thirty-seven thousand, nineteen".