1078070081 has 4 divisors (see below), whose sum is σ = 1176076464. Its totient is φ = 980063700.

The previous prime is 1078070069. The next prime is 1078070093. The reversal of 1078070081 is 1800708701.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1800708701 = 11 ⋅163700791.

It is an interprime number because it is at equal distance from previous prime (1078070069) and next prime (1078070093).

It is not a de Polignac number, because 1078070081 - 2¹⁸ = 1077807937 is a prime.

It is a super-2 number, since 2×1078070081² = 2324470199094693122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078070381) 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, 49003175 + ... + 49003196.

It is an arithmetic number, because the mean of its divisors is an integer number (294019116).

Almost surely, 2^1078070081 is an apocalyptic number.

1078070081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1078070081 is a deficient number, since it is larger than the sum of its proper divisors (98006383).

1078070081 is an equidigital number, since it uses as much as digits as its factorization.

1078070081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98006382.

The product of its (nonzero) digits is 3136, while the sum is 32.

The square root of 1078070081 is about 32833.9775385195. The cubic root of 1078070081 is about 1025.3740712005.

Adding to 1078070081 its reverse (1800708701), we get a palindrome (2878778782).

The spelling of 1078070081 in words is "one billion, seventy-eight million, seventy thousand, eighty-one".