3115530 has 64 divisors (see below), whose sum is σ = 9072000. Its totient is φ = 754560.

The previous prime is 3115529. The next prime is 3115537. The reversal of 3115530 is 355113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2446 + ... + 3494.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

Almost surely, 2^3115530 is an apocalyptic number.

3115530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3115530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4536000).

3115530 is an abundant number, since it is smaller than the sum of its proper divisors (5956470).

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

3115530 is a wasteful number, since it uses less digits than its factorization.

3115530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 3115530 is about 1765.0864001516. The cubic root of 3115530 is about 146.0530550908.

The spelling of 3115530 in words is "three million, one hundred fifteen thousand, five hundred thirty".