1361499999 has 8 divisors (see below), whose sum is σ = 1815520512. Its totient is φ = 907573080.

The previous prime is 1361499959. The next prime is 1361500001. The reversal of 1361499999 is 9999941631.

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

It is a de Polignac number, because none of the positive numbers 2^k-1361499999 is a prime.

1361499999 is a modest number, since divided by 99999 gives 13614 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361499949) 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, 24634 + ... + 57704.

It is an arithmetic number, because the mean of its divisors is an integer number (226940064).

Almost surely, 2^1361499999 is an apocalyptic number.

1361499999 is a deficient number, since it is larger than the sum of its proper divisors (454020513).

1361499999 is a wasteful number, since it uses less digits than its factorization.

1361499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46797.

The product of its digits is 4251528, while the sum is 60.

The square root of 1361499999 is about 36898.5094414395. The cubic root of 1361499999 is about 1108.3388292314.

The spelling of 1361499999 in words is "one billion, three hundred sixty-one million, four hundred ninety-nine thousand, nine hundred ninety-nine".