1061345723 has 4 divisors (see below), whose sum is σ = 1081371168. Its totient is φ = 1041320280.

The previous prime is 1061345693. The next prime is 1061345743. The reversal of 1061345723 is 3275431601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1061345723 - 2²⁴ = 1044568507 is a prime.

It is a super-2 number, since 2×1061345723² = 2252909487460785458, 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 1061345723.

It is not an unprimeable number, because it can be changed into a prime (1061345743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10012643 + ... + 10012748.

It is an arithmetic number, because the mean of its divisors is an integer number (270342792).

Almost surely, 2^1061345723 is an apocalyptic number.

1061345723 is a deficient number, since it is larger than the sum of its proper divisors (20025445).

1061345723 is an equidigital number, since it uses as much as digits as its factorization.

1061345723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20025444.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1061345723 is about 32578.3014136710. The cubic root of 1061345723 is about 1020.0441231073.

The spelling of 1061345723 in words is "one billion, sixty-one million, three hundred forty-five thousand, seven hundred twenty-three".