5151385 has 8 divisors (see below), whose sum is σ = 6194376. Its totient is φ = 4112640.

The previous prime is 5151373. The next prime is 5151407. The reversal of 5151385 is 5831515.

It can be written as a sum of positive squares in 4 ways, for example, as 205209 + 4946176 = 453^2 + 2224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5151385 - 2⁷ = 5151257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (774297).

Almost surely, 2^5151385 is an apocalyptic number.

It is an amenable number.

5151385 is a deficient number, since it is larger than the sum of its proper divisors (1042991).

5151385 is a wasteful number, since it uses less digits than its factorization.

5151385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its digits is 3000, while the sum is 28.

The square root of 5151385 is about 2269.6662750281. Note that the first 3 decimals coincide. The cubic root of 5151385 is about 172.7062295778.

The spelling of 5151385 in words is "five million, one hundred fifty-one thousand, three hundred eighty-five".