1161637104 has 40 divisors (see below), whose sum is σ = 3019326592. Its totient is φ = 384834240.

The previous prime is 1161637069. The next prime is 1161637109. The reversal of 1161637104 is 4017361611.

It is a super-2 number, since 2×1161637104² = 2698801522779013632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161637109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66412 + ... + 82059.

Almost surely, 2^1161637104 is an apocalyptic number.

It is an amenable number.

1161637104 is an abundant number, since it is smaller than the sum of its proper divisors (1857689488).

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

1161637104 is a wasteful number, since it uses less digits than its factorization.

1161637104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148645 (or 148639 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1161637104 is about 34082.7977724834. The cubic root of 1161637104 is about 1051.2116335134.

Adding to 1161637104 its reverse (4017361611), we get a palindrome (5178998715).

The spelling of 1161637104 in words is "one billion, one hundred sixty-one million, six hundred thirty-seven thousand, one hundred four".