1078312061 has 4 divisors (see below), whose sum is σ = 1078456800. Its totient is φ = 1078167324.

The previous prime is 1078312051. The next prime is 1078312063. The reversal of 1078312061 is 1602138701.

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: 1602138701 = 17 ⋅94243453.

It is a cyclic number.

It is not a de Polignac number, because 1078312061 - 2¹⁴ = 1078295677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078312063) 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, 60551 + ... + 76308.

It is an arithmetic number, because the mean of its divisors is an integer number (269614200).

Almost surely, 2^1078312061 is an apocalyptic number.

It is an amenable number.

1078312061 is a deficient number, since it is larger than the sum of its proper divisors (144739).

1078312061 is an equidigital number, since it uses as much as digits as its factorization.

1078312061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144738.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1078312061 is about 32837.6622340872. The cubic root of 1078312061 is about 1025.4507828047.

The spelling of 1078312061 in words is "one billion, seventy-eight million, three hundred twelve thousand, sixty-one".