11140591401 has 27 divisors (see below), whose sum is σ = 16269063447. Its totient is φ = 7346210400.

The previous prime is 11140591333. The next prime is 11140591409. The reversal of 11140591401 is 10419504111.

The square root of 11140591401 is 105549.

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

11140591401 is a `hidden beast` number, since 111 + 405 + 9 + 140 + 1 = 666.

11140591401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2262429225 + 8878162176 = 47565^2 + 94224^2 .

It is not a de Polignac number, because 11140591401 - 2¹⁵ = 11140558633 is a prime.

It is a super-2 number, since 2×11140591401² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11140591409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 47813581 + ... + 47813813.

Almost surely, 2^11140591401 is an apocalyptic number.

11140591401 is the 105549-th square number.

11140591401 is the 52775-th centered octagonal number.

It is an amenable number.

11140591401 is a deficient number, since it is larger than the sum of its proper divisors (5128472046).

11140591401 is an frugal number, since it uses more digits than its factorization.

11140591401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 11140591401 in words is "eleven billion, one hundred forty million, five hundred ninety-one thousand, four hundred one".