1361203426 has 16 divisors (see below), whose sum is σ = 2227992480. Its totient is φ = 618570880.

The previous prime is 1361203369. The next prime is 1361203429. The reversal of 1361203426 is 6243021631.

It is a junction number, because it is equal to n+sod(n) for n = 1361203394 and 1361203403.

It is not an unprimeable number, because it can be changed into a prime (1361203429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153810 + ... + 162418.

It is an arithmetic number, because the mean of its divisors is an integer number (139249530).

Almost surely, 2^1361203426 is an apocalyptic number.

1361203426 is a deficient number, since it is larger than the sum of its proper divisors (866789054).

1361203426 is a wasteful number, since it uses less digits than its factorization.

1361203426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15809.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1361203426 is about 36894.4904558933. The cubic root of 1361203426 is about 1108.2583475955.

The spelling of 1361203426 in words is "one billion, three hundred sixty-one million, two hundred three thousand, four hundred twenty-six".