1511225113 has 2 divisors, whose sum is σ = 1511225114. Its totient is φ = 1511225112.

The previous prime is 1511225101. The next prime is 1511225161. The reversal of 1511225113 is 3115221151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1038901824 + 472323289 = 32232^2 + 21733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1511225113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1511229113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 755612556 + 755612557.

It is an arithmetic number, because the mean of its divisors is an integer number (755612557).

Almost surely, 2^1511225113 is an apocalyptic number.

It is an amenable number.

1511225113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1511225113 is an equidigital number, since it uses as much as digits as its factorization.

1511225113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 300, while the sum is 22.

The square root of 1511225113 is about 38874.4789418456. The cubic root of 1511225113 is about 1147.5626040020.

Adding to 1511225113 its reverse (3115221151), we get a palindrome (4626446264).

The spelling of 1511225113 in words is "one billion, five hundred eleven million, two hundred twenty-five thousand, one hundred thirteen".