1151511015 has 16 divisors (see below), whose sum is σ = 1868368896. Its totient is φ = 605488800.

The previous prime is 1151511007. The next prime is 1151511029. The reversal of 1151511015 is 5101151511.

It is not a de Polignac number, because 1151511015 - 2³ = 1151511007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151510982 and 1151511000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539551 + ... + 541680.

It is an arithmetic number, because the mean of its divisors is an integer number (116773056).

Almost surely, 2^1151511015 is an apocalyptic number.

1151511015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151511015 is a deficient number, since it is larger than the sum of its proper divisors (716857881).

1151511015 is a wasteful number, since it uses less digits than its factorization.

1151511015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081310.

The product of its (nonzero) digits is 125, while the sum is 21.

The square root of 1151511015 is about 33933.9213030266. The cubic root of 1151511015 is about 1048.1482145595.

Adding to 1151511015 its reverse (5101151511), we get a palindrome (6252662526).

The spelling of 1151511015 in words is "one billion, one hundred fifty-one million, five hundred eleven thousand, fifteen".