1143046692 has 18 divisors (see below), whose sum is σ = 2889368118. Its totient is φ = 381015552.

The previous prime is 1143046691. The next prime is 1143046693. The reversal of 1143046692 is 2966403411.

It is an interprime number because it is at equal distance from previous prime (1143046691) and next prime (1143046693).

It can be written as a sum of positive squares in only one way, i.e., 1080699876 + 62346816 = 32874^2 + 7896^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 31751297 = 1143046692 / (1 + 1 + 4 + 3 + 0 + 4 + 6 + 6 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (1143046691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15875613 + ... + 15875684.

It is an arithmetic number, because the mean of its divisors is an integer number (160520451).

Almost surely, 2^1143046692 is an apocalyptic number.

1143046692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143046692 is an abundant number, since it is smaller than the sum of its proper divisors (1746321426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143046692 is a wasteful number, since it uses less digits than its factorization.

1143046692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31751307 (or 31751302 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1143046692 is about 33808.9735425375. The cubic root of 1143046692 is about 1045.5737154759.

The spelling of 1143046692 in words is "one billion, one hundred forty-three million, forty-six thousand, six hundred ninety-two".