1151172877 has 2 divisors, whose sum is σ = 1151172878. Its totient is φ = 1151172876.

The previous prime is 1151172859. The next prime is 1151172887. The reversal of 1151172877 is 7782711511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946854441 + 204318436 = 30771^2 + 14294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151172877 - 2¹¹ = 1151170829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151172887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575586438 + 575586439.

It is an arithmetic number, because the mean of its divisors is an integer number (575586439).

Almost surely, 2^1151172877 is an apocalyptic number.

It is an amenable number.

1151172877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151172877 is an equidigital number, since it uses as much as digits as its factorization.

1151172877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27440, while the sum is 40.

The square root of 1151172877 is about 33928.9386365091. The cubic root of 1151172877 is about 1048.0456092484.

The spelling of 1151172877 in words is "one billion, one hundred fifty-one million, one hundred seventy-two thousand, eight hundred seventy-seven".