1078746161 has 4 divisors (see below), whose sum is σ = 1125648192. Its totient is φ = 1031844132.

The previous prime is 1078746041. The next prime is 1078746173. The reversal of 1078746161 is 1616478701.

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: 1616478701 = 83 ⋅19475647.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078746161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078746181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23450981 + ... + 23451026.

It is an arithmetic number, because the mean of its divisors is an integer number (281412048).

Almost surely, 2^1078746161 is an apocalyptic number.

It is an amenable number.

1078746161 is a deficient number, since it is larger than the sum of its proper divisors (46902031).

1078746161 is an equidigital number, since it uses as much as digits as its factorization.

1078746161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46902030.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 1078746161 is about 32844.2713574224. The cubic root of 1078746161 is about 1025.5883708244.

The spelling of 1078746161 in words is "one billion, seventy-eight million, seven hundred forty-six thousand, one hundred sixty-one".