1363140263 has 4 divisors (see below), whose sum is σ = 1363346760. Its totient is φ = 1362933768.

The previous prime is 1363140239. The next prime is 1363140271. The reversal of 1363140263 is 3620413631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3620413631 = 523 ⋅6922397.

It is a cyclic number.

It is not a de Polignac number, because 1363140263 - 2¹² = 1363136167 is a prime.

It is a super-2 number, since 2×1363140263² = 3716302753223418338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363140293) 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, 93008 + ... + 106661.

It is an arithmetic number, because the mean of its divisors is an integer number (340836690).

Almost surely, 2^1363140263 is an apocalyptic number.

1363140263 is a deficient number, since it is larger than the sum of its proper divisors (206497).

1363140263 is an equidigital number, since it uses as much as digits as its factorization.

1363140263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206496.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 1363140263 is about 36920.7294483736. The cubic root of 1363140263 is about 1108.7837401645.

Adding to 1363140263 its reverse (3620413631), we get a palindrome (4983553894).

The spelling of 1363140263 in words is "one billion, three hundred sixty-three million, one hundred forty thousand, two hundred sixty-three".