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3145125 = 3538387
BaseRepresentation
bin1011111111110110100101
312220210022010
423333312211
51301121000
6151224433
735506314
oct13776645
95823263
103145125
111858a85
121078119
13861729
145bc27b
15421d50
hex2ffda5

3145125 has 16 divisors (see below), whose sum is σ = 5234112. Its totient is φ = 1677200.

The previous prime is 3145123. The next prime is 3145133. The reversal of 3145125 is 5215413.

It is not a de Polignac number, because 3145125 - 21 = 3145123 is a prime.

It is a super-3 number, since 3×31451253 = 93332948720396484375, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3819 + ... + 4568.

It is an arithmetic number, because the mean of its divisors is an integer number (327132).

Almost surely, 23145125 is an apocalyptic number.

It is an amenable number.

3145125 is a deficient number, since it is larger than the sum of its proper divisors (2088987).

3145125 is an equidigital number, since it uses as much as digits as its factorization.

3145125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8405 (or 8395 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 3145125 is about 1773.4500274888. The cubic root of 3145125 is about 146.5140601617.

The spelling of 3145125 in words is "three million, one hundred forty-five thousand, one hundred twenty-five".