1363628161 has 4 divisors (see below), whose sum is σ = 1558432192. Its totient is φ = 1168824132.

The previous prime is 1363628131. The next prime is 1363628179. The reversal of 1363628161 is 1618263631.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1618263631 = 5813 ⋅278387.

It is not a de Polignac number, because 1363628161 - 2⁷ = 1363628033 is a prime.

It is a super-2 number, since 2×1363628161² = 3718963522944483842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1363628161.

It is not an unprimeable number, because it can be changed into a prime (1363628131) 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 3 ways as a sum of consecutive naturals, for example, 97402005 + ... + 97402018.

It is an arithmetic number, because the mean of its divisors is an integer number (389608048).

Almost surely, 2^1363628161 is an apocalyptic number.

It is an amenable number.

1363628161 is a deficient number, since it is larger than the sum of its proper divisors (194804031).

1363628161 is an equidigital number, since it uses as much as digits as its factorization.

1363628161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194804030.

The product of its digits is 31104, while the sum is 37.

The square root of 1363628161 is about 36927.3362294114. The cubic root of 1363628161 is about 1108.9160104463.

The spelling of 1363628161 in words is "one billion, three hundred sixty-three million, six hundred twenty-eight thousand, one hundred sixty-one".