1161634132 has 6 divisors (see below), whose sum is σ = 2032859738. Its totient is φ = 580817064.

The previous prime is 1161634087. The next prime is 1161634147. The reversal of 1161634132 is 2314361611.

It can be written as a sum of positive squares in only one way, i.e., 1042256656 + 119377476 = 32284^2 + 10926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1161634132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145204263 + ... + 145204270.

Almost surely, 2^1161634132 is an apocalyptic number.

It is an amenable number.

1161634132 is a deficient number, since it is larger than the sum of its proper divisors (871225606).

1161634132 is a wasteful number, since it uses less digits than its factorization.

1161634132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290408537 (or 290408535 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 1161634132 is about 34082.7541727484. The cubic root of 1161634132 is about 1051.2107370190.

Adding to 1161634132 its reverse (2314361611), we get a palindrome (3475995743).

It can be divided in two parts, 116163 and 4132, that added together give a triangular number (120295 = T₄₉₀).

The spelling of 1161634132 in words is "one billion, one hundred sixty-one million, six hundred thirty-four thousand, one hundred thirty-two".