1149739363081 has 9 divisors (see below), whose sum is σ = 1188058476423. Its totient is φ = 1112618828760.

The previous prime is 1149739362977. The next prime is 1149739363099. The reversal of 1149739363081 is 1803639379411.

The square root of 1149739363081 is 1072259.

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., 598242681 + 1149141120400 = 24459^2 + 1071980^2 .

It is not a de Polignac number, because 1149739363081 - 2⁷ = 1149739362953 is a prime.

It is a super-2 number, since 2×1149739363081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149739393081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 33222735 + ... + 33257323.

Almost surely, 2^{1149739363081} is an apocalyptic number.

1149739363081 is the 1072259-th square number.

1149739363081 is the 536130-th centered octagonal number.

It is an amenable number.

1149739363081 is a deficient number, since it is larger than the sum of its proper divisors (38319113342).

1149739363081 is an frugal number, since it uses more digits than its factorization.

1149739363081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69240 (or 34620 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 1149739363081 in words is "one trillion, one hundred forty-nine billion, seven hundred thirty-nine million, three hundred sixty-three thousand, eighty-one".