1361824138 has 16 divisors (see below), whose sum is σ = 2052164160. Its totient is φ = 677777056.

The previous prime is 1361824129. The next prime is 1361824169. The reversal of 1361824138 is 8314281631.

It is a junction number, because it is equal to n+sod(n) for n = 1361824097 and 1361824106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489006 + ... + 491782.

It is an arithmetic number, because the mean of its divisors is an integer number (128260260).

Almost surely, 2^1361824138 is an apocalyptic number.

1361824138 is a deficient number, since it is larger than the sum of its proper divisors (690340022).

1361824138 is a wasteful number, since it uses less digits than its factorization.

1361824138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821.

The product of its digits is 27648, while the sum is 37.

The square root of 1361824138 is about 36902.9014848426. The cubic root of 1361824138 is about 1108.4267781440.

The spelling of 1361824138 in words is "one billion, three hundred sixty-one million, eight hundred twenty-four thousand, one hundred thirty-eight".