1361203136 has 28 divisors (see below), whose sum is σ = 2702780472. Its totient is φ = 680187648.

The previous prime is 1361203133. The next prime is 1361203153. The reversal of 1361203136 is 6313021631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361203133) 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, 118211 + ... + 129213.

It is an arithmetic number, because the mean of its divisors is an integer number (96527874).

Almost surely, 2^1361203136 is an apocalyptic number.

1361203136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1361203136 is a deficient number, since it is larger than the sum of its proper divisors (1341577336).

1361203136 is a wasteful number, since it uses less digits than its factorization.

1361203136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12948 (or 12938 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1361203136 is about 36894.4865257670. The cubic root of 1361203136 is about 1108.2582688919.

Adding to 1361203136 its reverse (6313021631), we get a palindrome (7674224767).

The spelling of 1361203136 in words is "one billion, three hundred sixty-one million, two hundred three thousand, one hundred thirty-six".