1081032761 has 4 divisors (see below), whose sum is σ = 1094716800. Its totient is φ = 1067348724.

The previous prime is 1081032727. The next prime is 1081032767. The reversal of 1081032761 is 1672301801.

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: 1672301801 = 12547 ⋅133283.

It is a cyclic number.

It is not a de Polignac number, because 1081032761 - 2²² = 1076838457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081032767) 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, 6841901 + ... + 6842058.

It is an arithmetic number, because the mean of its divisors is an integer number (273679200).

Almost surely, 2^1081032761 is an apocalyptic number.

It is an amenable number.

1081032761 is a deficient number, since it is larger than the sum of its proper divisors (13684039).

1081032761 is an equidigital number, since it uses as much as digits as its factorization.

1081032761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13684038.

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

The square root of 1081032761 is about 32879.0626539140. The cubic root of 1081032761 is about 1026.3125002005.

The spelling of 1081032761 in words is "one billion, eighty-one million, thirty-two thousand, seven hundred sixty-one".