1361273033 has 4 divisors (see below), whose sum is σ = 1361625360. Its totient is φ = 1360920708.

The previous prime is 1361272981. The next prime is 1361273057. The reversal of 1361273033 is 3303721631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1361273033 - 2¹⁴ = 1361256649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1361272987 and 1361273005.

It is not an unprimeable number, because it can be changed into a prime (1361273093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170303 + ... + 178116.

It is an arithmetic number, because the mean of its divisors is an integer number (340406340).

Almost surely, 2^1361273033 is an apocalyptic number.

It is an amenable number.

1361273033 is a deficient number, since it is larger than the sum of its proper divisors (352327).

1361273033 is an equidigital number, since it uses as much as digits as its factorization.

1361273033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352326.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 1361273033 is about 36895.4337689639. The cubic root of 1361273033 is about 1108.2772380426.

Adding to 1361273033 its reverse (3303721631), we get a palindrome (4664994664).

The spelling of 1361273033 in words is "one billion, three hundred sixty-one million, two hundred seventy-three thousand, thirty-three".