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40125 = 353107
BaseRepresentation
bin1001110010111101
32001001010
421302331
52241000
6505433
7224661
oct116275
961033
1040125
1128168
121b279
1315357
14108a1
15bd50
hex9cbd

40125 has 16 divisors (see below), whose sum is σ = 67392. Its totient is φ = 21200.

The previous prime is 40123. The next prime is 40127. The reversal of 40125 is 52104.

It is an interprime number because it is at equal distance from previous prime (40123) and next prime (40127).

It is not a de Polignac number, because 40125 - 21 = 40123 is a prime.

It is a super-2 number, since 2×401252 = 3220031250, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40123) 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, 322 + ... + 428.

It is an arithmetic number, because the mean of its divisors is an integer number (4212).

240125 is an apocalyptic number.

It is an amenable number.

40125 is a deficient number, since it is larger than the sum of its proper divisors (27267).

40125 is a wasteful number, since it uses less digits than its factorization.

40125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 40125 is about 200.3122562401. The cubic root of 40125 is about 34.2351063879.

Adding to 40125 its reverse (52104), we get a palindrome (92229).

The spelling of 40125 in words is "forty thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 107 125 321 375 535 1605 2675 8025 13375 40125