1013187000 has 128 divisors (see below), whose sum is σ = 3612810240. Its totient is φ = 231580800.

The previous prime is 1013186983. The next prime is 1013187013. The reversal of 1013187000 is 7813101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3124 + ... + 45123.

It is an arithmetic number, because the mean of its divisors is an integer number (28225080).

Almost surely, 2^1013187000 is an apocalyptic number.

1013187000 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 1013187000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1806405120).

1013187000 is an abundant number, since it is smaller than the sum of its proper divisors (2599623240).

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

1013187000 is a wasteful number, since it uses less digits than its factorization.

1013187000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48278 (or 48264 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1013187000 is about 31830.5984863621. The cubic root of 1013187000 is about 1004.3764851030.

The spelling of 1013187000 in words is "one billion, thirteen million, one hundred eighty-seven thousand".