1061489773 has 2 divisors, whose sum is σ = 1061489774. Its totient is φ = 1061489772.

The previous prime is 1061489743. The next prime is 1061489789. The reversal of 1061489773 is 3779841601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 670913604 + 390576169 = 25902^2 + 19763^2 .

It is an emirp because it is prime and its reverse (3779841601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1061489773 - 2²⁵ = 1027935341 is a prime.

It is a super-2 number, since 2×1061489773² = 2253521076367183058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061489743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530744886 + 530744887.

It is an arithmetic number, because the mean of its divisors is an integer number (530744887).

Almost surely, 2^1061489773 is an apocalyptic number.

It is an amenable number.

1061489773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061489773 is an equidigital number, since it uses as much as digits as its factorization.

1061489773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 1061489773 is about 32580.5121660173. The cubic root of 1061489773 is about 1020.0902691480.

It can be divided in two parts, 106148 and 9773, that added together give a triangular number (115921 = T₄₈₁).

The spelling of 1061489773 in words is "one billion, sixty-one million, four hundred eighty-nine thousand, seven hundred seventy-three".