615104 has 28 divisors (see below), whose sum is σ = 1395984. Its totient is φ = 263424.

The previous prime is 615103. The next prime is 615107. The reversal of 615104 is 401516.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is an Ulam number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (615101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239 + ... + 1134.

2⁶¹⁵¹⁰⁴ is an apocalyptic number.

615104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

615104 is an abundant number, since it is smaller than the sum of its proper divisors (780880).

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

615104 is a wasteful number, since it uses less digits than its factorization.

615104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 615104 is about 784.2856622430. The cubic root of 615104 is about 85.0451432637.

The spelling of 615104 in words is "six hundred fifteen thousand, one hundred four".