1361194128 has 300 divisors, whose sum is σ = 4623577088. Its totient is φ = 373403520.

The previous prime is 1361194123. The next prime is 1361194129. The reversal of 1361194128 is 8214911631.

1361194128 is a `hidden beast` number, since 13 + 611 + 9 + 4 + 1 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1361194092 and 1361194101.

It is not an unprimeable number, because it can be changed into a prime (1361194123) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 10718001 + ... + 10718127.

Almost surely, 2^1361194128 is an apocalyptic number.

1361194128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1361194128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2311788544).

1361194128 is an abundant number, since it is smaller than the sum of its proper divisors (3262382960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361194128 is a wasteful number, since it uses less digits than its factorization.

1361194128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 170 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1361194128 is about 36894.3644477039. The cubic root of 1361194128 is about 1108.2558241888.

The spelling of 1361194128 in words is "one billion, three hundred sixty-one million, one hundred ninety-four thousand, one hundred twenty-eight".