1177540449 has 4 divisors (see below), whose sum is σ = 1570053936. Its totient is φ = 785026964.

The previous prime is 1177540417. The next prime is 1177540471. The reversal of 1177540449 is 9440457711.

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 1177540449 - 2⁵ = 1177540417 is a prime.

It is a super-2 number, since 2×1177540449² = 2773203018062243202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1177540449.

It is not an unprimeable number, because it can be changed into a prime (1177540849) 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 3 ways as a sum of consecutive naturals, for example, 196256739 + ... + 196256744.

It is an arithmetic number, because the mean of its divisors is an integer number (392513484).

Almost surely, 2^1177540449 is an apocalyptic number.

It is an amenable number.

1177540449 is a deficient number, since it is larger than the sum of its proper divisors (392513487).

1177540449 is an equidigital number, since it uses as much as digits as its factorization.

1177540449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392513486.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 1177540449 is about 34315.3092511200. The cubic root of 1177540449 is about 1055.9870964835.

The spelling of 1177540449 in words is "one billion, one hundred seventy-seven million, five hundred forty thousand, four hundred forty-nine".