1161546057 has 48 divisors (see below), whose sum is σ = 2065423360. Its totient is φ = 614156256.

The previous prime is 1161546041. The next prime is 1161546059. The reversal of 1161546057 is 7506451611.

It is a happy number.

1161546057 is a `hidden beast` number, since 1 + 1 + 61 + 546 + 0 + 57 = 666.

It is not a de Polignac number, because 1161546057 - 2⁴ = 1161546041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161546059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40188 + ... + 62754.

Almost surely, 2^1161546057 is an apocalyptic number.

It is an amenable number.

1161546057 is a deficient number, since it is larger than the sum of its proper divisors (903877303).

1161546057 is a wasteful number, since it uses less digits than its factorization.

1161546057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22642 (or 22639 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1161546057 is about 34081.4620725109. The cubic root of 1161546057 is about 1051.1841687782.

Adding to 1161546057 its reverse (7506451611), we get a palindrome (8667997668).

The spelling of 1161546057 in words is "one billion, one hundred sixty-one million, five hundred forty-six thousand, fifty-seven".