1151515201 has 2 divisors, whose sum is σ = 1151515202. Its totient is φ = 1151515200.

The previous prime is 1151515193. The next prime is 1151515301. The reversal of 1151515201 is 1025151511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815159601 + 336355600 = 28551^2 + 18340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1151515201 - 2³ = 1151515193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1151515301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575757600 + 575757601.

It is an arithmetic number, because the mean of its divisors is an integer number (575757601).

Almost surely, 2^1151515201 is an apocalyptic number.

It is an amenable number.

1151515201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151515201 is an equidigital number, since it uses as much as digits as its factorization.

1151515201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 250, while the sum is 22.

The square root of 1151515201 is about 33933.9829816660. The cubic root of 1151515201 is about 1048.1494846424.

Adding to 1151515201 its reverse (1025151511), we get a palindrome (2176666712).

The spelling of 1151515201 in words is "one billion, one hundred fifty-one million, five hundred fifteen thousand, two hundred one".