1161420369 has 8 divisors (see below), whose sum is σ = 1574807520. Its totient is φ = 761156736.

The previous prime is 1161420367. The next prime is 1161420373. The reversal of 1161420369 is 9630241611.

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

It is not a de Polignac number, because 1161420369 - 2¹ = 1161420367 is a prime.

It is a super-2 number, since 2×1161420369² = 2697794547056192322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1161420367) 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, 3280672 + ... + 3281025.

It is an arithmetic number, because the mean of its divisors is an integer number (196850940).

Almost surely, 2^1161420369 is an apocalyptic number.

It is an amenable number.

1161420369 is a deficient number, since it is larger than the sum of its proper divisors (413387151).

1161420369 is an equidigital number, since it uses as much as digits as its factorization.

1161420369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6561759.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1161420369 is about 34079.6180876488. The cubic root of 1161420369 is about 1051.1462520721.

The spelling of 1161420369 in words is "one billion, one hundred sixty-one million, four hundred twenty thousand, three hundred sixty-nine".