1361224154 has 8 divisors (see below), whose sum is σ = 2097021108. Its totient is φ = 662217120.

The previous prime is 1361224121. The next prime is 1361224169. The reversal of 1361224154 is 4514221631.

It can be written as a sum of positive squares in 2 ways, for example, as 1359913129 + 1311025 = 36877^2 + 1145^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9197387 + ... + 9197534.

Almost surely, 2^1361224154 is an apocalyptic number.

1361224154 is a deficient number, since it is larger than the sum of its proper divisors (735796954).

1361224154 is a wasteful number, since it uses less digits than its factorization.

1361224154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18394960.

The product of its digits is 5760, while the sum is 29.

The square root of 1361224154 is about 36894.7713639751. The cubic root of 1361224154 is about 1108.2639729762.

Adding to 1361224154 its reverse (4514221631), we get a palindrome (5875445785).

The spelling of 1361224154 in words is "one billion, three hundred sixty-one million, two hundred twenty-four thousand, one hundred fifty-four".