1187015000 has 80 divisors (see below), whose sum is σ = 2846370120. Its totient is φ = 463680000.

The previous prime is 1187014963. The next prime is 1187015009. The reversal of 1187015000 is 5107811.

It is a super-2 number, since 2×1187015000² = 2818009220450000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187015009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 212240 + ... + 217760.

Almost surely, 2^1187015000 is an apocalyptic number.

1187015000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1187015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1423185060).

1187015000 is an abundant number, since it is smaller than the sum of its proper divisors (1659355120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1187015000 is an equidigital number, since it uses as much as digits as its factorization.

1187015000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590 (or 5571 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 1187015000 is about 34453.0840419258. The cubic root of 1187015000 is about 1058.8117098051.

The spelling of 1187015000 in words is "one billion, one hundred eighty-seven million, fifteen thousand".