5191000 has 64 divisors (see below), whose sum is σ = 12636000. Its totient is φ = 1993600.

The previous prime is 5190973. The next prime is 5191013. The reversal of 5191000 is 1915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28911 + ... + 29089.

Almost surely, 2^5191000 is an apocalyptic number.

5191000 is a gapful number since it is divisible by the number (50) 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 5191000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6318000).

5191000 is an abundant number, since it is smaller than the sum of its proper divisors (7445000).

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

5191000 is a wasteful number, since it uses less digits than its factorization.

5191000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 5191000 is about 2278.3766150485. The cubic root of 5191000 is about 173.1478126828.

Adding to 5191000 its reverse (1915), we get a palindrome (5192915).

The spelling of 5191000 in words is "five million, one hundred ninety-one thousand".