5151913 has 4 divisors (see below), whose sum is σ = 5548228. Its totient is φ = 4755600.

The previous prime is 5151899. The next prime is 5151919. The reversal of 5151913 is 3191515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3191515 = 5 ⋅638303.

It can be written as a sum of positive squares in 2 ways, for example, as 2152089 + 2999824 = 1467^2 + 1732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5151913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5151919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198138 + ... + 198163.

It is an arithmetic number, because the mean of its divisors is an integer number (1387057).

Almost surely, 2^5151913 is an apocalyptic number.

It is an amenable number.

5151913 is a deficient number, since it is larger than the sum of its proper divisors (396315).

5151913 is a wasteful number, since it uses less digits than its factorization.

5151913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396314.

The product of its digits is 675, while the sum is 25.

The square root of 5151913 is about 2269.7825887076. The cubic root of 5151913 is about 172.7121299828.

The spelling of 5151913 in words is "five million, one hundred fifty-one thousand, nine hundred thirteen".