1061156115 has 48 divisors (see below), whose sum is σ = 1893853728. Its totient is φ = 549255168.

The previous prime is 1061156113. The next prime is 1061156141. The reversal of 1061156115 is 5116511601.

It is not a de Polignac number, because 1061156115 - 2¹ = 1061156113 is a prime.

It is a super-2 number, since 2×1061156115² = 2252104600803786450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061156111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1120072 + ... + 1121018.

It is an arithmetic number, because the mean of its divisors is an integer number (39455286).

Almost surely, 2^1061156115 is an apocalyptic number.

1061156115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1061156115 is a deficient number, since it is larger than the sum of its proper divisors (832697613).

1061156115 is a wasteful number, since it uses less digits than its factorization.

1061156115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 1061156115 is about 32575.3912486097. The cubic root of 1061156115 is about 1019.9833763150.

Adding to 1061156115 its reverse (5116511601), we get a palindrome (6177667716).

The spelling of 1061156115 in words is "one billion, sixty-one million, one hundred fifty-six thousand, one hundred fifteen".