1355763381 has 8 divisors (see below), whose sum is σ = 2065925184. Its totient is φ = 774721920.

The previous prime is 1355763349. The next prime is 1355763403. The reversal of 1355763381 is 1833675531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1355763381 - 2⁵ = 1355763349 is a prime.

It is a super-2 number, since 2×1355763381² = 3676188690521102322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355763341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32280060 + ... + 32280101.

It is an arithmetic number, because the mean of its divisors is an integer number (258240648).

Almost surely, 2^1355763381 is an apocalyptic number.

It is an amenable number.

1355763381 is a deficient number, since it is larger than the sum of its proper divisors (710161803).

1355763381 is an equidigital number, since it uses as much as digits as its factorization.

1355763381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64560171.

The product of its digits is 226800, while the sum is 42.

The square root of 1355763381 is about 36820.6922938719. The cubic root of 1355763381 is about 1106.7799928200.

The spelling of 1355763381 in words is "one billion, three hundred fifty-five million, seven hundred sixty-three thousand, three hundred eighty-one".