1142666161 has 16 divisors (see below), whose sum is σ = 1419513984. Its totient is φ = 895630464.

The previous prime is 1142666141. The next prime is 1142666179. The reversal of 1142666161 is 1616662411.

It is a cyclic number.

It is not a de Polignac number, because 1142666161 - 2¹³ = 1142657969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142666141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48940 + ... + 68413.

It is an arithmetic number, because the mean of its divisors is an integer number (88719624).

Almost surely, 2^1142666161 is an apocalyptic number.

It is an amenable number.

1142666161 is a deficient number, since it is larger than the sum of its proper divisors (276847823).

1142666161 is a wasteful number, since it uses less digits than its factorization.

1142666161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117480.

The product of its digits is 10368, while the sum is 34.

The square root of 1142666161 is about 33803.3454113642. The cubic root of 1142666161 is about 1045.4576754884.

The spelling of 1142666161 in words is "one billion, one hundred forty-two million, six hundred sixty-six thousand, one hundred sixty-one".