5151000 has 128 divisors (see below), whose sum is σ = 17184960. Its totient is φ = 1280000.

The previous prime is 5150987. The next prime is 5151001. The reversal of 5151000 is 1515.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50950 + ... + 51050.

Almost surely, 2^5151000 is an apocalyptic number.

5151000 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 5151000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8592480).

5151000 is an abundant number, since it is smaller than the sum of its proper divisors (12033960).

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

5151000 is a wasteful number, since it uses less digits than its factorization.

5151000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 5151000 is about 2269.5814592122. The cubic root of 5151000 is about 172.7019269450.

Adding to 5151000 its reverse (1515), we get a palindrome (5152515).

The spelling of 5151000 in words is "five million, one hundred fifty-one thousand".