1151572229 has 2 divisors, whose sum is σ = 1151572230. Its totient is φ = 1151572228.

The previous prime is 1151572193. The next prime is 1151572291. The reversal of 1151572229 is 9222751511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010604100 + 140968129 = 31790^2 + 11873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151572229 - 2²⁰ = 1150523653 is a prime.

It is a super-2 number, since 2×1151572229² = 2652237197208056882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151532229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575786114 + 575786115.

It is an arithmetic number, because the mean of its divisors is an integer number (575786115).

Almost surely, 2^1151572229 is an apocalyptic number.

It is an amenable number.

1151572229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151572229 is an equidigital number, since it uses as much as digits as its factorization.

1151572229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 35.

The square root of 1151572229 is about 33934.8232498712. The cubic root of 1151572229 is about 1048.1667873180.

The spelling of 1151572229 in words is "one billion, one hundred fifty-one million, five hundred seventy-two thousand, two hundred twenty-nine".