1157769073 has 2 divisors, whose sum is σ = 1157769074. Its totient is φ = 1157769072.

The previous prime is 1157769043. The next prime is 1157769089. The reversal of 1157769073 is 3709677511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 844018704 + 313750369 = 29052^2 + 17713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157769073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157769013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578884536 + 578884537.

It is an arithmetic number, because the mean of its divisors is an integer number (578884537).

Almost surely, 2^1157769073 is an apocalyptic number.

It is an amenable number.

1157769073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157769073 is an equidigital number, since it uses as much as digits as its factorization.

1157769073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 277830, while the sum is 46.

The square root of 1157769073 is about 34026.0058337737. The cubic root of 1157769073 is about 1050.0435576791.

The spelling of 1157769073 in words is "one billion, one hundred fifty-seven million, seven hundred sixty-nine thousand, seventy-three".