1121646413 has 8 divisors (see below), whose sum is σ = 1133246400. Its totient is φ = 1110060288.

The previous prime is 1121646403. The next prime is 1121646419. The reversal of 1121646413 is 3146461211.

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 1121646413 - 2¹⁰ = 1121645389 is a prime.

It is a super-3 number, since 3×1121646413³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121646419) 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, 259373 + ... + 263661.

It is an arithmetic number, because the mean of its divisors is an integer number (141655800).

Almost surely, 2^1121646413 is an apocalyptic number.

It is an amenable number.

1121646413 is a deficient number, since it is larger than the sum of its proper divisors (11599987).

1121646413 is a wasteful number, since it uses less digits than its factorization.

1121646413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931.

The product of its digits is 3456, while the sum is 29.

The square root of 1121646413 is about 33490.9900271700. The cubic root of 1121646413 is about 1039.0074396661.

The spelling of 1121646413 in words is "one billion, one hundred twenty-one million, six hundred forty-six thousand, four hundred thirteen".