3145500 has 96 divisors (see below), whose sum is σ = 10221120. Its totient is φ = 835200.

The previous prime is 3145489. The next prime is 3145511. The reversal of 3145500 is 55413.

It is an interprime number because it is at equal distance from previous prime (3145489) and next prime (3145511).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13384 + ... + 13616.

It is an arithmetic number, because the mean of its divisors is an integer number (106470).

Almost surely, 2^3145500 is an apocalyptic number.

3145500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3145500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5110560).

3145500 is an abundant number, since it is smaller than the sum of its proper divisors (7075620).

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

3145500 is a wasteful number, since it uses less digits than its factorization.

3145500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3145500 is about 1773.5557504629. Note that the first 3 decimals coincide. The cubic root of 3145500 is about 146.5198829921.

The spelling of 3145500 in words is "three million, one hundred forty-five thousand, five hundred".