363181397 has 4 divisors (see below), whose sum is σ = 371627520. Its totient is φ = 354735276.

The previous prime is 363181331. The next prime is 363181451. The reversal of 363181397 is 793181363.

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 363181397 - 2⁸ = 363181141 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 (363181327) 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, 4222997 + ... + 4223082.

It is an arithmetic number, because the mean of its divisors is an integer number (92906880).

Almost surely, 2^363181397 is an apocalyptic number.

It is an amenable number.

363181397 is a deficient number, since it is larger than the sum of its proper divisors (8446123).

363181397 is an equidigital number, since it uses as much as digits as its factorization.

363181397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8446122.

The product of its digits is 81648, while the sum is 41.

The square root of 363181397 is about 19057.3187253611. The cubic root of 363181397 is about 713.4680532569.

The spelling of 363181397 in words is "three hundred sixty-three million, one hundred eighty-one thousand, three hundred ninety-seven".