1361183864 has 16 divisors (see below), whose sum is σ = 2686547400. Its totient is φ = 644771232.

The previous prime is 1361183839. The next prime is 1361183881. The reversal of 1361183864 is 4683811631.

It is a super-2 number, since 2×1361183864² = 3705643023227940992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4477427 + ... + 4477730.

Almost surely, 2^1361183864 is an apocalyptic number.

It is an amenable number.

1361183864 is a deficient number, since it is larger than the sum of its proper divisors (1325363536).

1361183864 is a wasteful number, since it uses less digits than its factorization.

1361183864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8955182 (or 8955178 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 1361183864 is about 36894.2253476069. The cubic root of 1361183864 is about 1108.2530386037.

The spelling of 1361183864 in words is "one billion, three hundred sixty-one million, one hundred eighty-three thousand, eight hundred sixty-four".