1361872049 has 8 divisors (see below), whose sum is σ = 1394675040. Its totient is φ = 1329120576.

The previous prime is 1361872007. The next prime is 1361872079. The reversal of 1361872049 is 9402781631.

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

It is a cyclic number.

It is not a de Polignac number, because 1361872049 - 2⁸ = 1361871793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1361871997 and 1361872015.

It is not an unprimeable number, because it can be changed into a prime (1361872079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43562 + ... + 67980.

It is an arithmetic number, because the mean of its divisors is an integer number (174334380).

Almost surely, 2^1361872049 is an apocalyptic number.

It is an amenable number.

1361872049 is a deficient number, since it is larger than the sum of its proper divisors (32802991).

1361872049 is a wasteful number, since it uses less digits than its factorization.

1361872049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25759.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1361872049 is about 36903.5506286319. The cubic root of 1361872049 is about 1108.4397766929.

The spelling of 1361872049 in words is "one billion, three hundred sixty-one million, eight hundred seventy-two thousand, forty-nine".