534138615 has 36 divisors (see below), whose sum is σ = 937673256. Its totient is φ = 281278368.

The previous prime is 534138613. The next prime is 534138643. The reversal of 534138615 is 516831435.

534138615 is a `hidden beast` number, since 5 + 3 + 4 + 1 + 38 + 615 = 666.

It is not a de Polignac number, because 534138615 - 2¹ = 534138613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 534138615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534138613) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 309144 + ... + 310866.

Almost surely, 2^534138615 is an apocalyptic number.

534138615 is a deficient number, since it is larger than the sum of its proper divisors (403534641).

534138615 is a wasteful number, since it uses less digits than its factorization.

534138615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1814 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 534138615 is about 23111.4390508250. The cubic root of 534138615 is about 811.3682179693.

It can be divided in two parts, 5341 and 38615, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 534138615 in words is "five hundred thirty-four million, one hundred thirty-eight thousand, six hundred fifteen".