1161719056 has 15 divisors (see below), whose sum is σ = 2251094853. Its totient is φ = 580791360.

The previous prime is 1161719023. The next prime is 1161719063. The reversal of 1161719056 is 6509171611.

The square root of 1161719056 is 34084.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 562448656 + 599270400 = 23716^2 + 24480^2 .

It is a super-2 number, since 2×1161719056² = 2699182330147062272, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 132076 + ... + 140596.

Almost surely, 2^1161719056 is an apocalyptic number.

1161719056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1161719056 is the 34084-th square number.

It is an amenable number.

1161719056 is a deficient number, since it is larger than the sum of its proper divisors (1089375797).

1161719056 is an frugal number, since it uses more digits than its factorization.

1161719056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17050 (or 8523 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 37.

The cubic root of 1161719056 is about 1051.2363534739.

The spelling of 1161719056 in words is "one billion, one hundred sixty-one million, seven hundred nineteen thousand, fifty-six".