1355669499 has 8 divisors (see below), whose sum is σ = 1807759872. Its totient is φ = 903679400.

The previous prime is 1355669477. The next prime is 1355669509. The reversal of 1355669499 is 9949665531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1355669499 - 2¹⁵ = 1355636731 is a prime.

It is a super-2 number, since 2×1355669499² = 3675679581037822002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1355669459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16174 + ... + 54524.

It is an arithmetic number, because the mean of its divisors is an integer number (225969984).

Almost surely, 2^1355669499 is an apocalyptic number.

1355669499 is a deficient number, since it is larger than the sum of its proper divisors (452090373).

1355669499 is a wasteful number, since it uses less digits than its factorization.

1355669499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50137.

The product of its digits is 7873200, while the sum is 57.

The square root of 1355669499 is about 36819.4174179875. The cubic root of 1355669499 is about 1106.7544453144.

The spelling of 1355669499 in words is "one billion, three hundred fifty-five million, six hundred sixty-nine thousand, four hundred ninety-nine".