1191926053 has 2 divisors, whose sum is σ = 1191926054. Its totient is φ = 1191926052.

The previous prime is 1191926041. The next prime is 1191926093. The reversal of 1191926053 is 3506291911.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865654084 + 326271969 = 29422^2 + 18063^2 .

It is an emirp because it is prime and its reverse (3506291911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1191926053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1191926093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595963026 + 595963027.

It is an arithmetic number, because the mean of its divisors is an integer number (595963027).

Almost surely, 2^1191926053 is an apocalyptic number.

It is an amenable number.

1191926053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1191926053 is an equidigital number, since it uses as much as digits as its factorization.

1191926053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 1191926053 is about 34524.2820779810. The cubic root of 1191926053 is about 1060.2699125752.

The spelling of 1191926053 in words is "one billion, one hundred ninety-one million, nine hundred twenty-six thousand, fifty-three".