1361644126 has 8 divisors (see below), whose sum is σ = 2077084440. Its totient is φ = 669282648.

The previous prime is 1361644069. The next prime is 1361644129. The reversal of 1361644126 is 6214461631.

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

It is a junction number, because it is equal to n+sod(n) for n = 1361644091 and 1361644100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361644129) by changing a digit.

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, 5769561 + ... + 5769796.

It is an arithmetic number, because the mean of its divisors is an integer number (259635555).

Almost surely, 2^1361644126 is an apocalyptic number.

1361644126 is a deficient number, since it is larger than the sum of its proper divisors (715440314).

1361644126 is a wasteful number, since it uses less digits than its factorization.

1361644126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11539418.

The product of its digits is 20736, while the sum is 34.

The square root of 1361644126 is about 36900.4624090268. The cubic root of 1361644126 is about 1108.3779370571.

The spelling of 1361644126 in words is "one billion, three hundred sixty-one million, six hundred forty-four thousand, one hundred twenty-six".