1150515151 has 4 divisors (see below), whose sum is σ = 1211068600. Its totient is φ = 1089961704.

The previous prime is 1150515133. The next prime is 1150515187. The reversal of 1150515151 is 1515150511.

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

It is a cyclic number.

It is not a de Polignac number, because 1150515151 - 2¹⁵ = 1150482383 is a prime.

It is a super-2 number, since 2×1150515151² = 2647370225361105602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150515251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30276696 + ... + 30276733.

It is an arithmetic number, because the mean of its divisors is an integer number (302767150).

Almost surely, 2^1150515151 is an apocalyptic number.

1150515151 is a deficient number, since it is larger than the sum of its proper divisors (60553449).

1150515151 is an equidigital number, since it uses as much as digits as its factorization.

1150515151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60553448.

The product of its (nonzero) digits is 625, while the sum is 25.

The square root of 1150515151 is about 33919.2445523187. The cubic root of 1150515151 is about 1047.8459699110.

Adding to 1150515151 its reverse (1515150511), we get a palindrome (2665665662).

The spelling of 1150515151 in words is "one billion, one hundred fifty million, five hundred fifteen thousand, one hundred fifty-one".