1078325281 has 4 divisors (see below), whose sum is σ = 1176354864. Its totient is φ = 980295700.

The previous prime is 1078325257. The next prime is 1078325309. The reversal of 1078325281 is 1825238701.

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 a de Polignac number, because none of the positive numbers 2^k-1078325281 is a prime.

It is a super-2 number, since 2×1078325281² = 2325570823287457922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1078325281.

It is not an unprimeable number, because it can be changed into a prime (1078325201) 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, 49014775 + ... + 49014796.

It is an arithmetic number, because the mean of its divisors is an integer number (294088716).

Almost surely, 2^1078325281 is an apocalyptic number.

1078325281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1078325281 is a deficient number, since it is larger than the sum of its proper divisors (98029583).

1078325281 is an equidigital number, since it uses as much as digits as its factorization.

1078325281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98029582.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1078325281 is about 32837.8635267278. The cubic root of 1078325281 is about 1025.4549734296.

The spelling of 1078325281 in words is "one billion, seventy-eight million, three hundred twenty-five thousand, two hundred eighty-one".