1356081879 has 4 divisors (see below), whose sum is σ = 1808109176. Its totient is φ = 904054584.

The previous prime is 1356081877. The next prime is 1356082067. The reversal of 1356081879 is 9781806531.

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

It is not a de Polignac number, because 1356081879 - 2¹ = 1356081877 is a prime.

It is a super-3 number, since 3×1356081879³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356081871) 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, 226013644 + ... + 226013649.

It is an arithmetic number, because the mean of its divisors is an integer number (452027294).

Almost surely, 2^1356081879 is an apocalyptic number.

1356081879 is a deficient number, since it is larger than the sum of its proper divisors (452027297).

1356081879 is an equidigital number, since it uses as much as digits as its factorization.

1356081879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452027296.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 1356081879 is about 36825.0170264726. The cubic root of 1356081879 is about 1106.8666548484.

The spelling of 1356081879 in words is "one billion, three hundred fifty-six million, eighty-one thousand, eight hundred seventy-nine".