1161479774 has 32 divisors (see below), whose sum is σ = 2151226560. Its totient is φ = 457996032.

The previous prime is 1161479749. The next prime is 1161479779. The reversal of 1161479774 is 4779741611.

It is a super-2 number, since 2×1161479774² = 2698070530822182152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161479779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46772 + ... + 67160.

It is an arithmetic number, because the mean of its divisors is an integer number (67225830).

Almost surely, 2^1161479774 is an apocalyptic number.

1161479774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1161479774 is a deficient number, since it is larger than the sum of its proper divisors (989746786).

1161479774 is a wasteful number, since it uses less digits than its factorization.

1161479774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20724.

The product of its digits is 296352, while the sum is 47.

The square root of 1161479774 is about 34080.4896385014. The cubic root of 1161479774 is about 1051.1641733118.

The spelling of 1161479774 in words is "one billion, one hundred sixty-one million, four hundred seventy-nine thousand, seven hundred seventy-four".