1151018685 has 48 divisors (see below), whose sum is σ = 2084479488. Its totient is φ = 586857600.

The previous prime is 1151018683. The next prime is 1151018719. The reversal of 1151018685 is 5868101511.

It is not a de Polignac number, because 1151018685 - 2¹ = 1151018683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151018683) 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, 110815 + ... + 120755.

It is an arithmetic number, because the mean of its divisors is an integer number (43426656).

Almost surely, 2^1151018685 is an apocalyptic number.

1151018685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1151018685 is a deficient number, since it is larger than the sum of its proper divisors (933460803).

1151018685 is a wasteful number, since it uses less digits than its factorization.

1151018685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066 (or 10063 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 36.

The square root of 1151018685 is about 33926.6662818497. Note that the first 3 decimals coincide. The cubic root of 1151018685 is about 1047.9988142310.

The spelling of 1151018685 in words is "one billion, one hundred fifty-one million, eighteen thousand, six hundred eighty-five".