1367881145 has 4 divisors (see below), whose sum is σ = 1641457380. Its totient is φ = 1094304912.

The previous prime is 1367881133. The next prime is 1367881199. The reversal of 1367881145 is 5411887631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 607721104 + 760160041 = 24652^2 + 27571^2 .

It is a cyclic number.

It is not a de Polignac number, because 1367881145 - 2²⁸ = 1099445689 is a prime.

It is a super-2 number, since 2×1367881145² = 3742197653693022050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1367881096 and 1367881105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136788110 + ... + 136788119.

It is an arithmetic number, because the mean of its divisors is an integer number (410364345).

Almost surely, 2^1367881145 is an apocalyptic number.

It is an amenable number.

1367881145 is a deficient number, since it is larger than the sum of its proper divisors (273576235).

1367881145 is an equidigital number, since it uses as much as digits as its factorization.

1367881145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273576234.

The product of its digits is 161280, while the sum is 44.

The square root of 1367881145 is about 36984.8772473291. The cubic root of 1367881145 is about 1110.0676703056.

The spelling of 1367881145 in words is "one billion, three hundred sixty-seven million, eight hundred eighty-one thousand, one hundred forty-five".