1161828451 has 8 divisors (see below), whose sum is σ = 1346505984. Its totient is φ = 981826440.

The previous prime is 1161828401. The next prime is 1161828487. The reversal of 1161828451 is 1548281611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1161828451 - 2¹¹ = 1161826403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161828451.

It is not an unprimeable number, because it can be changed into a prime (1161828401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168345 + ... + 1169338.

It is an arithmetic number, because the mean of its divisors is an integer number (168313248).

Almost surely, 2^1161828451 is an apocalyptic number.

1161828451 is a deficient number, since it is larger than the sum of its proper divisors (184677533).

1161828451 is an equidigital number, since it uses as much as digits as its factorization.

1161828451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337761.

The product of its digits is 15360, while the sum is 37.

The square root of 1161828451 is about 34085.6047474590. The cubic root of 1161828451 is about 1051.2693495156.

The spelling of 1161828451 in words is "one billion, one hundred sixty-one million, eight hundred twenty-eight thousand, four hundred fifty-one".