1349523499 has 4 divisors (see below), whose sum is σ = 1352729440. Its totient is φ = 1346317560.

The previous prime is 1349523473. The next prime is 1349523509. The reversal of 1349523499 is 9943259431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9943259431 = 7 ⋅1420465633.

It is a cyclic number.

It is not a de Polignac number, because 1349523499 - 2⁵ = 1349523467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1349523419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602339 + ... + 1603180.

It is an arithmetic number, because the mean of its divisors is an integer number (338182360).

Almost surely, 2^1349523499 is an apocalyptic number.

1349523499 is a deficient number, since it is larger than the sum of its proper divisors (3205941).

1349523499 is an equidigital number, since it uses as much as digits as its factorization.

1349523499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205940.

The product of its digits is 1049760, while the sum is 49.

The square root of 1349523499 is about 36735.8612121725. The cubic root of 1349523499 is about 1105.0794013499.

The spelling of 1349523499 in words is "one billion, three hundred forty-nine million, five hundred twenty-three thousand, four hundred ninety-nine".