1363189157 has 4 divisors (see below), whose sum is σ = 1487115456. Its totient is φ = 1239262860.

The previous prime is 1363189141. The next prime is 1363189189. The reversal of 1363189157 is 7519813631.

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 not a de Polignac number, because 1363189157 - 2⁴ = 1363189141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363189117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61963133 + ... + 61963154.

It is an arithmetic number, because the mean of its divisors is an integer number (371778864).

Almost surely, 2^1363189157 is an apocalyptic number.

It is an amenable number.

1363189157 is a deficient number, since it is larger than the sum of its proper divisors (123926299).

1363189157 is a wasteful number, since it uses less digits than its factorization.

1363189157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123926298.

The product of its digits is 136080, while the sum is 44.

The square root of 1363189157 is about 36921.3915907838. The cubic root of 1363189157 is about 1108.7969968644.

The spelling of 1363189157 in words is "one billion, three hundred sixty-three million, one hundred eighty-nine thousand, one hundred fifty-seven".