1146661943 has 32 divisors (see below), whose sum is σ = 1390815360. Its totient is φ = 924618240.

The previous prime is 1146661939. The next prime is 1146661973. The reversal of 1146661943 is 3491666411.

It is not a de Polignac number, because 1146661943 - 2² = 1146661939 is a prime.

It is a super-2 number, since 2×1146661943² = 2629667223049070498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1146661943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146661973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2119253 + ... + 2119793.

It is an arithmetic number, because the mean of its divisors is an integer number (43462980).

Almost surely, 2^1146661943 is an apocalyptic number.

1146661943 is a deficient number, since it is larger than the sum of its proper divisors (244153417).

1146661943 is a wasteful number, since it uses less digits than its factorization.

1146661943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its digits is 93312, while the sum is 41.

The square root of 1146661943 is about 33862.3971833064. The cubic root of 1146661943 is about 1046.6748758715.

The spelling of 1146661943 in words is "one billion, one hundred forty-six million, six hundred sixty-one thousand, nine hundred forty-three".