1190661273 has 6 divisors (see below), whose sum is σ = 1719844074. Its totient is φ = 793774176.

The previous prime is 1190661253. The next prime is 1190661287. The reversal of 1190661273 is 3721660911.

It can be written as a sum of positive squares in only one way, i.e., 1163287449 + 27373824 = 34107^2 + 5232^2 .

It is not a de Polignac number, because 1190661273 - 2⁶ = 1190661209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1190661253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66147840 + ... + 66147857.

It is an arithmetic number, because the mean of its divisors is an integer number (286640679).

Almost surely, 2^1190661273 is an apocalyptic number.

It is an amenable number.

1190661273 is a deficient number, since it is larger than the sum of its proper divisors (529182801).

1190661273 is a wasteful number, since it uses less digits than its factorization.

1190661273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132295703 (or 132295700 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1190661273 is about 34505.9599634614. The cubic root of 1190661273 is about 1059.8947542949.

The spelling of 1190661273 in words is "one billion, one hundred ninety million, six hundred sixty-one thousand, two hundred seventy-three".