1151522245 has 4 divisors (see below), whose sum is σ = 1381826700. Its totient is φ = 921217792.

The previous prime is 1151522237. The next prime is 1151522263. The reversal of 1151522245 is 5422251511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 490312449 + 661209796 = 22143^2 + 25714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151522245 - 2³ = 1151522237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115152220 + ... + 115152229.

It is an arithmetic number, because the mean of its divisors is an integer number (345456675).

Almost surely, 2^1151522245 is an apocalyptic number.

It is an amenable number.

1151522245 is a deficient number, since it is larger than the sum of its proper divisors (230304455).

1151522245 is an equidigital number, since it uses as much as digits as its factorization.

1151522245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230304454.

The product of its digits is 4000, while the sum is 28.

The square root of 1151522245 is about 33934.0867712688. The cubic root of 1151522245 is about 1048.1516218699.

Adding to 1151522245 its reverse (5422251511), we get a palindrome (6573773756).

The spelling of 1151522245 in words is "one billion, one hundred fifty-one million, five hundred twenty-two thousand, two hundred forty-five".