1019140500 has 288 divisors, whose sum is σ = 3539337984. Its totient is φ = 223200000.

The previous prime is 1019140489. The next prime is 1019140501. The reversal of 1019140500 is 50419101.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019140501) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10090450 + ... + 10090550.

It is an arithmetic number, because the mean of its divisors is an integer number (12289368).

Almost surely, 2^1019140500 is an apocalyptic number.

1019140500 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 1019140500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769668992).

1019140500 is an abundant number, since it is smaller than the sum of its proper divisors (2520197484).

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

1019140500 is a wasteful number, since it uses less digits than its factorization.

1019140500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1019140500 is about 31923.9800150295. The cubic root of 1019140500 is about 1006.3398875503.

Adding to 1019140500 its reverse (50419101), we get a palindrome (1069559601).

The spelling of 1019140500 in words is "one billion, nineteen million, one hundred forty thousand, five hundred".