1142461161 has 6 divisors (see below), whose sum is σ = 1650221690. Its totient is φ = 761640768.

The previous prime is 1142461157. The next prime is 1142461231. The reversal of 1142461161 is 1611642411.

1142461161 is a `hidden beast` number, since 1 + 1 + 42 + 4 + 611 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1117899225 + 24561936 = 33435^2 + 4956^2 .

It is not a de Polignac number, because 1142461161 - 2² = 1142461157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142461141) 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, 63470056 + ... + 63470073.

Almost surely, 2^1142461161 is an apocalyptic number.

It is an amenable number.

1142461161 is a deficient number, since it is larger than the sum of its proper divisors (507760529).

1142461161 is a wasteful number, since it uses less digits than its factorization.

1142461161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126940135 (or 126940132 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1142461161 is about 33800.3130310948. The cubic root of 1142461161 is about 1045.3951516447.

The spelling of 1142461161 in words is "one billion, one hundred forty-two million, four hundred sixty-one thousand, one hundred sixty-one".