11452494181 has 4 divisors (see below), whose sum is σ = 11454395392. Its totient is φ = 11450592972.

The previous prime is 11452494133. The next prime is 11452494239. The reversal of 11452494181 is 18149425411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11452494181 - 2¹¹ = 11452492133 is a prime.

It is a super-2 number, since 2×11452494181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11452494281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941541 + ... + 953626.

It is an arithmetic number, because the mean of its divisors is an integer number (2863598848).

Almost surely, 2^11452494181 is an apocalyptic number.

It is an amenable number.

11452494181 is a deficient number, since it is larger than the sum of its proper divisors (1901211).

11452494181 is an equidigital number, since it uses as much as digits as its factorization.

11452494181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901210.

The product of its digits is 46080, while the sum is 40.

The spelling of 11452494181 in words is "eleven billion, four hundred fifty-two million, four hundred ninety-four thousand, one hundred eighty-one".