5151615 has 48 divisors (see below), whose sum is σ = 9871488. Its totient is φ = 2286144.

The previous prime is 5151607. The next prime is 5151617. The reversal of 5151615 is 5161515.

It is not a de Polignac number, because 5151615 - 2³ = 5151607 is a prime.

5151615 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31524 + ... + 31686.

It is an arithmetic number, because the mean of its divisors is an integer number (205656).

Almost surely, 2^5151615 is an apocalyptic number.

5151615 is a deficient number, since it is larger than the sum of its proper divisors (4719873).

5151615 is a wasteful number, since it uses less digits than its factorization.

5151615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 221 counting only the distinct ones).

The product of its digits is 750, while the sum is 24.

The square root of 5151615 is about 2269.7169427045. The cubic root of 5151615 is about 172.7087998796.

It can be divided in two parts, 51 and 51615, that multiplied together give a triangular number (2632365 = T₂₂₉₄).

The spelling of 5151615 in words is "five million, one hundred fifty-one thousand, six hundred fifteen".