1155861014 has 16 divisors (see below), whose sum is σ = 2161610496. Its totient is φ = 450335400.

The previous prime is 1155861011. The next prime is 1155861017. The reversal of 1155861014 is 4101685511.

It is an interprime number because it is at equal distance from previous prime (1155861011) and next prime (1155861017).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155861011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3752642 + ... + 3752949.

It is an arithmetic number, because the mean of its divisors is an integer number (135100656).

Almost surely, 2^1155861014 is an apocalyptic number.

1155861014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1155861014 is a deficient number, since it is larger than the sum of its proper divisors (1005749482).

1155861014 is a wasteful number, since it uses less digits than its factorization.

1155861014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505611.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 1155861014 is about 33997.9560267967. The cubic root of 1155861014 is about 1049.4663997747.

The spelling of 1155861014 in words is "one billion, one hundred fifty-five million, eight hundred sixty-one thousand, fourteen".